Oracle8iDialect (hibernate-core JavaDocs)

java.lang.Object
- org.hibernate.dialect.Dialect
- - org.hibernate.dialect.Oracle8iDialect

All Implemented Interfaces:

ConversionContext

Direct Known Subclasses:

Oracle9iDialect
```
public class Oracle8iDialect
extends Dialect
```
A dialect for Oracle 8i.

Field Summary
- Fields inherited from class org.hibernate.dialect.Dialect
  CLOSED_QUOTE, DEFAULT_BATCH_SIZE, LEGACY_LOB_MERGE_STRATEGY, NEW_LOCATOR_LOB_MERGE_STRATEGY, NO_BATCH, QUOTE, STANDARD_DEFAULT_BATCH_LOAD_SIZING_STRATEGY, STREAM_XFER_LOB_MERGE_STRATEGY

Constructor Summary

Constructors
Constructor and Description

Oracle8iDialect()
Constructs a Oracle8iDialect

Constructors
Constructor and Description
`Oracle8iDialect()` Constructs a Oracle8iDialect

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`boolean`	`bindLimitParametersInReverseOrder()` ANSI SQL defines the LIMIT clause to be in the form LIMIT offset, limit.
`SQLExceptionConversionDelegate`	`buildSQLExceptionConversionDelegate()` Build an instance of a `SQLExceptionConversionDelegate` for interpreting dialect-specific error or SQLState codes.
`boolean`	`canCreateSchema()` Does this dialect support schema creation?
`CaseFragment`	`createCaseFragment()` Map case support to the Oracle DECODE function.
`JoinFragment`	`createOuterJoinFragment()` Create a `JoinFragment` strategy responsible for handling this dialect’s variations in how joins are handled.
`boolean`	`dropConstraints()` Do we need to drop constraints before dropping tables in this dialect?
`boolean`	`forceLobAsLastValue()` HHH-4635 Oracle expects all Lob values to be last in inserts and updates.
`boolean`	`forUpdateOfColumns()` Is <tt>FOR UPDATE OF</tt> syntax supported?
`String`	`getAddColumnString()` The syntax used to add a column to a table (optional).
`String`	`getBasicSelectClauseNullString(int sqlType)` Allows access to the basic `Dialect.getSelectClauseNullString(int)` implementation…
`CallableStatementSupport`	`getCallableStatementSupport()`
`String`	`getCascadeConstraintsString()` Completely optional cascading drop clause
`String`	`getCreateSequenceString(String sequenceName)` Typically dialects which support sequences can create a sequence with a single command.
`protected String`	`getCreateSequenceString(String sequenceName, int initialValue, int incrementSize)` Overloaded form of `Dialect.getCreateSequenceString(String)`, additionally taking the initial value and increment size to be applied to the sequence definition.
`String`	`getCrossJoinSeparator()` Returns the separator to use for defining cross joins when translating HQL queries.
`String`	`getCurrentSchemaCommand()` Get the SQL command used to retrieve the current schema name.
`String`	`getCurrentTimestampSelectString()` Retrieve the command used to retrieve the current timestamp from the database.
`String`	`getCurrentTimestampSQLFunctionName()` The name of the database-specific SQL function for retrieving the current timestamp.
`MultiTableBulkIdStrategy`	`getDefaultMultiTableBulkIdStrategy()`
`String`	`getDropSequenceString(String sequenceName)` Typically dialects which support sequences can drop a sequence with a single command.
`String`	`getForUpdateNowaitString()` Retrieves the <tt>FOR UPDATE NOWAIT</tt> syntax specific to this dialect.
`String`	`getForUpdateNowaitString(String aliases)` Get the <tt>FOR UPDATE OF column_list NOWAIT</tt> fragment appropriate for this dialect given the aliases of the columns to be write locked.
`String`	`getForUpdateString(String aliases)` Get the <tt>FOR UPDATE OF column_list</tt> fragment appropriate for this dialect given the aliases of the columns to be write locked.
`int`	`getInExpressionCountLimit()` Return the limit that the underlying database places on the number of elements in an `IN` predicate.
`LimitHandler`	`getLimitHandler()` Returns the delegate managing LIMIT clause.
`String`	`getLimitString(String sql, boolean hasOffset)` Apply s limit clause to the query.
`int`	`getMaxAliasLength()` What is the maximum length Hibernate can use for generated aliases? <p/> The maximum here should account for the fact that Hibernate often needs to append "uniqueing" information to the end of generated aliases.
`String`	`getNotExpression(String expression)` Negate an expression
`String`	`getQueryHintString(String sql, String hints)` Apply a hint to the query.
`String`	`getQuerySequencesString()` Get the select command used retrieve the names of all sequences.
`ResultSet`	`getResultSet(CallableStatement ps)` Given a callable statement previously processed by `Dialect.registerResultSetOutParameter(java.sql.CallableStatement, int)`, extract the `ResultSet` from the OUT parameter.
`String`	`getSelectClauseNullString(int sqlType)` Given a `Types` type code, determine an appropriate null value to use in a select clause.
`String`	`getSelectGUIDString()` Get the command used to select a GUID from the underlying database.
`String`	`getSelectSequenceNextValString(String sequenceName)` Generate the select expression fragment that will retrieve the next value of a sequence as part of another (typically DML) statement.
`String`	`getSequenceNextValString(String sequenceName)` Generate the appropriate select statement to to retrieve the next value of a sequence.
`protected SqlTypeDescriptor`	`getSqlTypeDescriptorOverride(int sqlCode)` Returns the `SqlTypeDescriptor` that should be used to handle the given JDBC type code.
`ViolatedConstraintNameExtracter`	`getViolatedConstraintNameExtracter()`
`boolean`	`isCurrentTimestampSelectStringCallable()` Should the value returned by `Dialect.getCurrentTimestampSelectString()` be treated as callable.
`protected void`	`registerCharacterTypeMappings()`
`protected void`	`registerDateTimeTypeMappings()`
`protected void`	`registerDefaultProperties()`
`protected void`	`registerFunctions()`
`protected void`	`registerLargeObjectTypeMappings()`
`protected void`	`registerNumericTypeMappings()`
`int`	`registerResultSetOutParameter(CallableStatement statement, int col)` Registers a parameter (either OUT, or the new REF_CURSOR param type available in Java 8) capable of returning `ResultSet` by position.
`protected void`	`registerReverseHibernateTypeMappings()`
`protected String`	`statementType(String sql)`
`boolean`	`supportsCommentOn()` Does this dialect/database support commenting on tables, columns, etc?
`boolean`	`supportsCurrentTimestampSelection()` Does this dialect support a way to retrieve the database’s current timestamp value?
`boolean`	`supportsEmptyInList()` Does this dialect support empty IN lists? <p/> For example, is [where XYZ in ()] a supported construct?
`boolean`	`supportsExistsInSelect()` Does the dialect support an exists statement in the select clause?
`boolean`	`supportsLimit()` Does this dialect support some form of limiting query results via a SQL clause?
`boolean`	`supportsNoWait()` Does this dialect/database support NO_WAIT timeout.
`boolean`	`supportsPartitionBy()` Does the underlying database support partition by
`boolean`	`supportsPooledSequences()` Does this dialect support "pooled" sequences.
`boolean`	`supportsSequences()` Does this dialect support sequences?
`boolean`	`supportsUnionAll()` Does this dialect support UNION ALL, which is generally a faster variant of UNION?
`boolean`	`useFollowOnLocking(QueryParameters parameters)` For Oracle, the FOR UPDATE clause cannot be applied when using ORDER BY, DISTINCT or views.
`boolean`	`useMaxForLimit()` Does the <tt>LIMIT</tt> clause take a "maximum" row number instead of a total number of returned rows? <p/> This is easiest understood via an example.

Methods inherited from class org.hibernate.dialect.Dialect
addSqlHintOrComment, appendLockHint, appendLockHint, applyLocksToSql, areStringComparisonsCaseInsensitive, augmentRecognizedTableTypes, bindLimitParametersFirst, buildIdentifierHelper, buildSQLExceptionConverter, canCreateCatalog, cast, cast, cast, closeQuote, contributeTypes, convertToFirstRowValue, defaultScrollMode, doesReadCommittedCauseWritersToBlockReaders, doesRepeatableReadCauseReadersToBlockWriters, escapeLiteral, forceLimitUsage, getAddColumnSuffixString, getAddForeignKeyConstraintString, getAddForeignKeyConstraintString, getAddPrimaryKeyConstraintString, getAddUniqueConstraintString, getAlterTableString, getAuxiliaryDatabaseObjectExporter, getCaseInsensitiveLike, getCastTypeName, getColumnAliasExtractor, getColumnComment, getCreateCatalogCommand, getCreateMultisetTableString, getCreateSchemaCommand, getCreateSequenceStrings, getCreateSequenceStrings, getCreateTableString, getDefaultBatchLoadSizingStrategy, getDefaultProperties, getDialect, getDialect, getDropCatalogCommand, getDropForeignKeyString, getDropSchemaCommand, getDropSequenceStrings, getDropTableString, getForeignKeyExporter, getForUpdateSkipLockedString, getForUpdateSkipLockedString, getForUpdateString, getForUpdateString, getForUpdateString, getForUpdateString, getFunctions, getHibernateTypeName, getHibernateTypeName, getIdentityColumnSupport, getIndexExporter, getKeywords, getLimitString, getLobMergeStrategy, getLockingStrategy, getLowercaseFunction, getNameQualifierSupport, getNativeIdentifierGeneratorClass, getNativeIdentifierGeneratorStrategy, getNoColumnsInsertString, getNullColumnString, getQueryHintString, getReadLockString, getReadLockString, getResultSet, getResultSet, getSchemaNameResolver, getSequenceExporter, getSequenceInformationExtractor, getTableComment, getTableExporter, getTableTypeString, getTypeName, getTypeName, getUniqueDelegate, getUniqueKeyExporter, getWriteLockString, getWriteLockString, hasAlterTable, hasSelfReferentialForeignKeyBug, inlineLiteral, isJdbcLogWarningsEnabledByDefault, isLegacyLimitHandlerBehaviorEnabled, isLockTimeoutParameterized, isTypeNameRegistered, openQuote, prependComment, qualifyIndexName, quote, registerColumnType, registerColumnType, registerFunction, registerHibernateType, registerHibernateType, registerKeyword, registerResultSetOutParameter, remapSqlTypeDescriptor, renderOrderByElement, replaceResultVariableInOrderByClauseWithPosition, requiresCastingOfParametersInSelectClause, requiresParensForTupleDistinctCounts, supportsBindAsCallableArgument, supportsCascadeDelete, supportsCaseInsensitiveLike, supportsCircularCascadeDeleteConstraints, supportsColumnCheck, supportsExpectedLobUsagePattern, supportsIfExistsAfterAlterTable, supportsIfExistsAfterConstraintName, supportsIfExistsAfterTableName, supportsIfExistsBeforeConstraintName, supportsIfExistsBeforeTableName, supportsLimitOffset, supportsLobValueChangePropogation, supportsLockTimeouts, supportsNamedParameters, supportsNationalizedTypes, supportsNonQueryWithCTE, supportsNotNullUnique, supportsOuterJoinForUpdate, supportsParametersInInsertSelect, supportsResultSetPositionQueryMethodsOnForwardOnlyCursor, supportsRowValueConstructorSyntax, supportsRowValueConstructorSyntaxInInList, supportsSkipLocked, supportsSubqueryOnMutatingTable, supportsSubselectAsInPredicateLHS, supportsTableCheck, supportsTupleCounts, supportsTupleDistinctCounts, supportsTuplesInSubqueries, supportsUnboundedLobLocatorMaterialization, supportsUnique, supportsUniqueConstraintInCreateAlterTable, supportsValuesList, supportsVariableLimit, toBooleanValueString, toString, transformSelectString, useFollowOnLocking, useInputStreamToInsertBlob

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Constructor Detail
 - Oracle8iDialect
```
public Oracle8iDialect()
```
 Constructs a Oracle8iDialect
- Method Detail
 - registerCharacterTypeMappings
```
protected void registerCharacterTypeMappings()
```
 - registerNumericTypeMappings
```
protected void registerNumericTypeMappings()
```
 - registerDateTimeTypeMappings
```
protected void registerDateTimeTypeMappings()
```
 - registerLargeObjectTypeMappings
```
protected void registerLargeObjectTypeMappings()
```
 - registerReverseHibernateTypeMappings
```
protected void registerReverseHibernateTypeMappings()
```
 - registerFunctions
```
protected void registerFunctions()
```
 - registerDefaultProperties
```
protected void registerDefaultProperties()
```
 - getSqlTypeDescriptorOverride
```
protected SqlTypeDescriptor getSqlTypeDescriptorOverride(int sqlCode)
```
 Description copied from class: Dialect
 
 Returns the SqlTypeDescriptor that should be used to handle the given JDBC type code. Returns null if there is no override.
 
 Overrides:
 
 getSqlTypeDescriptorOverride in class Dialect
 
 Parameters:
 
 sqlCode - A Types constant indicating the SQL column type
 
 Returns:
 
 The SqlTypeDescriptor to use as an override, or null if there is no override.
 - createOuterJoinFragment
```
public JoinFragment createOuterJoinFragment()
```
 Description copied from class: Dialect
 
 Create a JoinFragment strategy responsible for handling this dialect’s variations in how joins are handled.
 
 Overrides:
 
 createOuterJoinFragment in class Dialect
 
 Returns:
 
 This dialect’s JoinFragment strategy.
 - getCrossJoinSeparator
```
public String getCrossJoinSeparator()
```
 Description copied from class: Dialect
 
 Returns the separator to use for defining cross joins when translating HQL queries. Typically this will be either [<tt> cross join </tt>] or [<tt>, </tt>] Note that the spaces are important!
 
 Overrides:
 
 getCrossJoinSeparator in class Dialect
 
 Returns:
 
 The cross join separator
 - createCaseFragment
```
public CaseFragment createCaseFragment()
```
 Map case support to the Oracle DECODE function. Oracle did not add support for CASE until 9i. 
 Create a CaseFragment strategy responsible for handling this dialect’s variations in how CASE statements are handled.
 
 Overrides:
 
 createCaseFragment in class Dialect
 
 Returns:
 
 This dialect’s CaseFragment strategy.
 - getLimitHandler
```
public LimitHandler getLimitHandler()
```
 Description copied from class: Dialect
 
 Returns the delegate managing LIMIT clause.
 
 Overrides:
 
 getLimitHandler in class Dialect
 
 Returns:
 
 LIMIT clause delegate.
 - getLimitString
```
public String getLimitString(String sql,
 boolean hasOffset)
```
 Description copied from class: Dialect
 
 Apply s limit clause to the query. Typically dialects utilize variable limit clauses when they support limits. Thus, when building the select command we do not actually need to know the limit or the offest since we will just be using placeholders. Here we do still pass along whether or not an offset was specified so that dialects not supporting offsets can generate proper exceptions. In general, dialects will override one or the other of this method and Dialect.getLimitString(String, int, int).
 
 Overrides:
 
 getLimitString in class Dialect
 
 Parameters:
 
 sql - The query to which to apply the limit.
 
 hasOffset - Is the query requesting an offset?
 
 Returns:
 
 the modified SQL
 - getBasicSelectClauseNullString
```
public String getBasicSelectClauseNullString(int sqlType)
```
 Allows access to the basic Dialect.getSelectClauseNullString(int) implementation…
 
 Parameters:
 
 sqlType - The Types mapping type code
 
 Returns:
 
 The appropriate select cluse fragment
 - getSelectClauseNullString
```
public String getSelectClauseNullString(int sqlType)
```
 Description copied from class: Dialect
 
 Given a Types type code, determine an appropriate null value to use in a select clause. One thing to consider here is that certain databases might require proper casting for the nulls here since the select here will be part of a UNION/UNION ALL.
 
 Overrides:
 
 getSelectClauseNullString in class Dialect
 
 Parameters:
 
 sqlType - The Types type code.
 
 Returns:
 
 The appropriate select clause value fragment.
 - getCurrentTimestampSelectString
```
public String getCurrentTimestampSelectString()
```
 Description copied from class: Dialect
 
 Retrieve the command used to retrieve the current timestamp from the database.
 
 Overrides:
 
 getCurrentTimestampSelectString in class Dialect
 
 Returns:
 
 The command.
 - getCurrentTimestampSQLFunctionName
```
public String getCurrentTimestampSQLFunctionName()
```
 Description copied from class: Dialect
 
 The name of the database-specific SQL function for retrieving the current timestamp.
 
 Overrides:
 
 getCurrentTimestampSQLFunctionName in class Dialect
 
 Returns:
 
 The function name.
 - getAddColumnString
```
public String getAddColumnString()
```
 Description copied from class: Dialect
 
 The syntax used to add a column to a table (optional).
 
 Overrides:
 
 getAddColumnString in class Dialect
 
 Returns:
 
 The "add column" fragment.
 - getSequenceNextValString
```
public String getSequenceNextValString(String sequenceName)
```
 Description copied from class: Dialect
 
 Generate the appropriate select statement to to retrieve the next value of a sequence. This should be a "stand alone" select statement.
 
 Overrides:
 
 getSequenceNextValString in class Dialect
 
 Parameters:
 
 sequenceName - the name of the sequence
 
 Returns:
 
 String The "nextval" select string.
 - getSelectSequenceNextValString
```
public String getSelectSequenceNextValString(String sequenceName)
```
 Description copied from class: Dialect
 
 Generate the select expression fragment that will retrieve the next value of a sequence as part of another (typically DML) statement. This differs from Dialect.getSequenceNextValString(String) in that this should return an expression usable within another statement.
 
 Overrides:
 
 getSelectSequenceNextValString in class Dialect
 
 Parameters:
 
 sequenceName - the name of the sequence
 
 Returns:
 
 The "nextval" fragment.
 - getCreateSequenceString
```
public String getCreateSequenceString(String sequenceName)
```
 Description copied from class: Dialect
 
 Typically dialects which support sequences can create a sequence with a single command. This is convenience form of Dialect.getCreateSequenceStrings(java.lang.String) to help facilitate that. Dialects which support sequences and can create a sequence in a single command need only override this method. Dialects which support sequences but require multiple commands to create a sequence should instead override Dialect.getCreateSequenceStrings(java.lang.String).
 
 Overrides:
 
 getCreateSequenceString in class Dialect
 
 Parameters:
 
 sequenceName - The name of the sequence
 
 Returns:
 
 The sequence creation command
 - getCreateSequenceString
```
protected String getCreateSequenceString(String sequenceName,
 int initialValue,
 int incrementSize)
```
 Description copied from class: Dialect
 
 Overloaded form of Dialect.getCreateSequenceString(String), additionally taking the initial value and increment size to be applied to the sequence definition. The default definition is to suffix Dialect.getCreateSequenceString(String) with the string: " start with {initialValue} increment by {incrementSize}" where {initialValue} and {incrementSize} are replacement placeholders. Generally dialects should only need to override this method if different key phrases are used to apply the allocation information.
 
 Overrides:
 
 getCreateSequenceString in class Dialect
 
 Parameters:
 
 sequenceName - The name of the sequence
 
 initialValue - The initial value to apply to 'create sequence' statement
 
 incrementSize - The increment value to apply to 'create sequence' statement
 
 Returns:
 
 The sequence creation command
 - getDropSequenceString
```
public String getDropSequenceString(String sequenceName)
```
 Description copied from class: Dialect
 
 Typically dialects which support sequences can drop a sequence with a single command. This is convenience form of Dialect.getDropSequenceStrings(java.lang.String) to help facilitate that. Dialects which support sequences and can drop a sequence in a single command need only override this method. Dialects which support sequences but require multiple commands to drop a sequence should instead override Dialect.getDropSequenceStrings(java.lang.String).
 
 Overrides:
 
 getDropSequenceString in class Dialect
 
 Parameters:
 
 sequenceName - The name of the sequence
 
 Returns:
 
 The sequence drop commands
 - getCascadeConstraintsString
```
public String getCascadeConstraintsString()
```
 Description copied from class: Dialect
 
 Completely optional cascading drop clause
 
 Overrides:
 
 getCascadeConstraintsString in class Dialect
 
 Returns:
 
 String
 - dropConstraints
```
public boolean dropConstraints()
```
 Description copied from class: Dialect
 
 Do we need to drop constraints before dropping tables in this dialect?
 
 Overrides:
 
 dropConstraints in class Dialect
 
 Returns:
 
 True if constraints must be dropped prior to dropping the table; false otherwise.
 - getForUpdateNowaitString
```
public String getForUpdateNowaitString()
```
 Description copied from class: Dialect
 
 Retrieves the <tt>FOR UPDATE NOWAIT</tt> syntax specific to this dialect.
 
 Overrides:
 
 getForUpdateNowaitString in class Dialect
 
 Returns:
 
 The appropriate <tt>FOR UPDATE NOWAIT</tt> clause string.
 - supportsSequences
```
public boolean supportsSequences()
```
 Description copied from class: Dialect
 
 Does this dialect support sequences?
 
 Overrides:
 
 supportsSequences in class Dialect
 
 Returns:
 
 True if sequences supported; false otherwise.
 - supportsPooledSequences
```
public boolean supportsPooledSequences()
```
 Description copied from class: Dialect
 
 Does this dialect support "pooled" sequences. Not aware of a better name for this. Essentially can we specify the initial and increment values?
 
 Overrides:
 
 supportsPooledSequences in class Dialect
 
 Returns:
 
 True if such "pooled" sequences are supported; false otherwise.
 
 See Also:
 
 Dialect.getCreateSequenceStrings(String, int, int), Dialect.getCreateSequenceString(String, int, int)
 - supportsLimit
```
public boolean supportsLimit()
```
 Description copied from class: Dialect
 
 Does this dialect support some form of limiting query results via a SQL clause?
 
 Overrides:
 
 supportsLimit in class Dialect
 
 Returns:
 
 True if this dialect supports some form of LIMIT.
 - getForUpdateString
```
public String getForUpdateString(String aliases)
```
 Description copied from class: Dialect
 
 Get the <tt>FOR UPDATE OF column_list</tt> fragment appropriate for this dialect given the aliases of the columns to be write locked.
 
 Overrides:
 
 getForUpdateString in class Dialect
 
 Parameters:
 
 aliases - The columns to be write locked.
 
 Returns:
 
 The appropriate <tt>FOR UPDATE OF column_list</tt> clause string.
 - getForUpdateNowaitString
```
public String getForUpdateNowaitString(String aliases)
```
 Description copied from class: Dialect
 
 Get the <tt>FOR UPDATE OF column_list NOWAIT</tt> fragment appropriate for this dialect given the aliases of the columns to be write locked.
 
 Overrides:
 
 getForUpdateNowaitString in class Dialect
 
 Parameters:
 
 aliases - The columns to be write locked.
 
 Returns:
 
 The appropriate <tt>FOR UPDATE OF colunm_list NOWAIT</tt> clause string.
 - bindLimitParametersInReverseOrder
```
public boolean bindLimitParametersInReverseOrder()
```
 Description copied from class: Dialect
 
 ANSI SQL defines the LIMIT clause to be in the form LIMIT offset, limit. Does this dialect require us to bind the parameters in reverse order?
 
 Overrides:
 
 bindLimitParametersInReverseOrder in class Dialect
 
 Returns:
 
 true if the correct order is limit, offset
 - useMaxForLimit
```
public boolean useMaxForLimit()
```
 Description copied from class: Dialect
 
 Does the <tt>LIMIT</tt> clause take a "maximum" row number instead of a total number of returned rows? This is easiest understood via an example. Consider you have a table with 20 rows, but you only want to retrieve rows number 11 through 20. Generally, a limit with offset would say that the offset = 11 and the limit = 10 (we only want 10 rows at a time); this is specifying the total number of returned rows. Some dialects require that we instead specify offset = 11 and limit = 20, where 20 is the "last" row we want relative to offset (i.e. total number of rows = 20 - 11 = 9) So essentially, is limit relative from offset? Or is limit absolute?
 
 Overrides:
 
 useMaxForLimit in class Dialect
 
 Returns:
 
 True if limit is relative from offset; false otherwise.
 - forUpdateOfColumns
```
public boolean forUpdateOfColumns()
```
 Description copied from class: Dialect
 
 Is <tt>FOR UPDATE OF</tt> syntax supported?
 
 Overrides:
 
 forUpdateOfColumns in class Dialect
 
 Returns:
 
 True if the database supports <tt>FOR UPDATE OF</tt> syntax; false otherwise.
 - getQuerySequencesString
```
public String getQuerySequencesString()
```
 Description copied from class: Dialect
 
 Get the select command used retrieve the names of all sequences.
 
 Overrides:
 
 getQuerySequencesString in class Dialect
 
 Returns:
 
 The select command; or null if sequences are not supported.
 
 See Also:
 
 SchemaUpdate
 - getSelectGUIDString
```
public String getSelectGUIDString()
```
 Description copied from class: Dialect
 
 Get the command used to select a GUID from the underlying database. Optional operation.
 
 Overrides:
 
 getSelectGUIDString in class Dialect
 
 Returns:
 
 The appropriate command.
 - getViolatedConstraintNameExtracter
```
public ViolatedConstraintNameExtracter getViolatedConstraintNameExtracter()
```
 Specified by:
 
 getViolatedConstraintNameExtracter in interface ConversionContext
 
 Overrides:
 
 getViolatedConstraintNameExtracter in class Dialect
 - buildSQLExceptionConversionDelegate
```
public SQLExceptionConversionDelegate buildSQLExceptionConversionDelegate()
```
 Description copied from class: Dialect
 
 Build an instance of a SQLExceptionConversionDelegate for interpreting dialect-specific error or SQLState codes. When Dialect.buildSQLExceptionConverter() returns null, the default SQLExceptionConverter is used to interpret SQLState and error codes. If this method is overridden to return a non-null value, the default SQLExceptionConverter will use the returned SQLExceptionConversionDelegate in addition to the following standard delegates: <ol> <li>a "static" delegate based on the JDBC 4 defined SQLException hierarchy;</li> <li>a delegate that interprets SQLState codes for either X/Open or SQL-2003 codes, depending on java.sql.DatabaseMetaData#getSQLStateType</li> </ol> It is strongly recommended that specific Dialect implementations override this method, since interpretation of a SQL error is much more accurate when based on the a vendor-specific ErrorCode rather than the SQLState. Specific Dialects may override to return whatever is most appropriate for that vendor.
 
 Overrides:
 
 buildSQLExceptionConversionDelegate in class Dialect
 
 Returns:
 
 The SQLExceptionConversionDelegate for this dialect
 - registerResultSetOutParameter
```
public int registerResultSetOutParameter(CallableStatement statement,
 int col)
 throws SQLException
```
 Description copied from class: Dialect
 
 Registers a parameter (either OUT, or the new REF_CURSOR param type available in Java 8) capable of returning ResultSet by position. Pre-Java 8, registering such ResultSet-returning parameters varied greatly across database and drivers; hence its inclusion as part of the Dialect contract.
 
 Overrides:
 
 registerResultSetOutParameter in class Dialect
 
 Parameters:
 
 statement - The callable statement.
 
 col - The bind position at which to register the output param.
 
 Returns:
 
 The number of (contiguous) bind positions used.
 
 Throws:
 
 SQLException - Indicates problems registering the param.
 - getResultSet
```
public ResultSet getResultSet(CallableStatement ps)
 throws SQLException
```
 Description copied from class: Dialect
 
 Given a callable statement previously processed by Dialect.registerResultSetOutParameter(java.sql.CallableStatement, int), extract the ResultSet from the OUT parameter.
 
 Overrides:
 
 getResultSet in class Dialect
 
 Parameters:
 
 ps - The callable statement.
 
 Returns:
 
 The extracted result set.
 
 Throws:
 
 SQLException - Indicates problems extracting the result set.
 - supportsUnionAll
```
public boolean supportsUnionAll()
```
 Description copied from class: Dialect
 
 Does this dialect support UNION ALL, which is generally a faster variant of UNION?
 
 Overrides:
 
 supportsUnionAll in class Dialect
 
 Returns:
 
 True if UNION ALL is supported; false otherwise.
 - supportsCommentOn
```
public boolean supportsCommentOn()
```
 Description copied from class: Dialect
 
 Does this dialect/database support commenting on tables, columns, etc?
 
 Overrides:
 
 supportsCommentOn in class Dialect
 
 Returns:
 
 true if commenting is supported
 - getDefaultMultiTableBulkIdStrategy
```
public MultiTableBulkIdStrategy getDefaultMultiTableBulkIdStrategy()
```
 Overrides:
 
 getDefaultMultiTableBulkIdStrategy in class Dialect
 - supportsCurrentTimestampSelection
```
public boolean supportsCurrentTimestampSelection()
```
 Description copied from class: Dialect
 
 Does this dialect support a way to retrieve the database’s current timestamp value?
 
 Overrides:
 
 supportsCurrentTimestampSelection in class Dialect
 
 Returns:
 
 True if the current timestamp can be retrieved; false otherwise.
 - isCurrentTimestampSelectStringCallable
```
public boolean isCurrentTimestampSelectStringCallable()
```
 Description copied from class: Dialect
 
 Should the value returned by Dialect.getCurrentTimestampSelectString() be treated as callable. Typically this indicates that JDBC escape syntax is being used…
 
 Overrides:
 
 isCurrentTimestampSelectStringCallable in class Dialect
 
 Returns:
 
 True if the Dialect.getCurrentTimestampSelectString() return is callable; false otherwise.
 - supportsEmptyInList
```
public boolean supportsEmptyInList()
```
 Description copied from class: Dialect
 
 Does this dialect support empty IN lists? For example, is [where XYZ in ()] a supported construct?
 
 Overrides:
 
 supportsEmptyInList in class Dialect
 
 Returns:
 
 True if empty in lists are supported; false otherwise.
 - supportsExistsInSelect
```
public boolean supportsExistsInSelect()
```
 Description copied from class: Dialect
 
 Does the dialect support an exists statement in the select clause?
 
 Overrides:
 
 supportsExistsInSelect in class Dialect
 
 Returns:
 
 True if exists checks are allowed in the select clause; false otherwise.
 - getInExpressionCountLimit
```
public int getInExpressionCountLimit()
```
 Description copied from class: Dialect
 
 Return the limit that the underlying database places on the number of elements in an IN predicate. If the database defines no such limits, simply return zero or less-than-zero.
 
 Overrides:
 
 getInExpressionCountLimit in class Dialect
 
 Returns:
 
 int The limit, or zero-or-less to indicate no limit.
 - forceLobAsLastValue
```
public boolean forceLobAsLastValue()
```
 Description copied from class: Dialect
 
 HHH-4635 Oracle expects all Lob values to be last in inserts and updates.
 
 Overrides:
 
 forceLobAsLastValue in class Dialect
 
 Returns:
 
 boolean True if Lob values should be last, false if it does not matter.
 - useFollowOnLocking
```
public boolean useFollowOnLocking(QueryParameters parameters)
```
 For Oracle, the FOR UPDATE clause cannot be applied when using ORDER BY, DISTINCT or views.
 
 Overrides:
 
 useFollowOnLocking in class Dialect
 
 Parameters:
 
 parameters -
 
 Returns:
 
 See Also:
 
 href="https://docs.oracle.com/database/121/SQLRF/statements_10002.htm#SQLRF01702">Oracle FOR UPDATE restrictions</a>
 - getNotExpression
```
public String getNotExpression(String expression)
```
 Description copied from class: Dialect
 
 Negate an expression
 
 Overrides:
 
 getNotExpression in class Dialect
 
 Parameters:
 
 expression - The expression to negate
 
 Returns:
 
 The negated expression
 - getQueryHintString
```
public String getQueryHintString(String sql,
 String hints)
```
 Description copied from class: Dialect
 
 Apply a hint to the query. The entire query is provided, allowing the Dialect full control over the placement and syntax of the hint. By default, ignore the hint and simply return the query.
 
 Overrides:
 
 getQueryHintString in class Dialect
 
 Parameters:
 
 sql - The query to which to apply the hint.
 
 hints - The hints to apply
 
 Returns:
 
 The modified SQL
 - getMaxAliasLength
```
public int getMaxAliasLength()
```
 Description copied from class: Dialect
 
 What is the maximum length Hibernate can use for generated aliases? The maximum here should account for the fact that Hibernate often needs to append "uniqueing" information to the end of generated aliases. That "uniqueing" information will be added to the end of a identifier generated to the length specified here; so be sure to leave some room (generally speaking 5 positions will suffice).
 
 Overrides:
 
 getMaxAliasLength in class Dialect
 
 Returns:
 
 The maximum length.
 - getCallableStatementSupport
```
public CallableStatementSupport getCallableStatementSupport()
```
 Overrides:
 
 getCallableStatementSupport in class Dialect
 - canCreateSchema
```
public boolean canCreateSchema()
```
 Description copied from class: Dialect
 
 Does this dialect support schema creation?
 
 Overrides:
 
 canCreateSchema in class Dialect
 
 Returns:
 
 True if the dialect supports schema creation; false otherwise.
 - getCurrentSchemaCommand
```
public String getCurrentSchemaCommand()
```
 Description copied from class: Dialect
 
 Get the SQL command used to retrieve the current schema name. Works in conjunction with Dialect.getSchemaNameResolver(), unless the return from there does not need this information. E.g., a custom impl might make use of the Java 1.7 addition of the Connection.getSchema() method
 
 Overrides:
 
 getCurrentSchemaCommand in class Dialect
 
 Returns:
 
 The current schema retrieval SQL
 - supportsPartitionBy
```
public boolean supportsPartitionBy()
```
 Description copied from class: Dialect
 
 Does the underlying database support partition by
 
 Overrides:
 
 supportsPartitionBy in class Dialect
 
 Returns:
 
 boolean
 - statementType
```
protected String statementType(String sql)
```
 - supportsNoWait
```
public boolean supportsNoWait()
```
 Description copied from class: Dialect
 
 Does this dialect/database support NO_WAIT timeout.
 
 Overrides:
 
 supportsNoWait in class Dialect
 
 Returns:
 
 true if NO_WAIT is supported

Class Oracle8iDialect

Field Summary

Fields inherited from class org.hibernate.dialect.Dialect

Constructor Summary

Method Summary

Methods inherited from class org.hibernate.dialect.Dialect

Methods inherited from class java.lang.Object

Constructor Detail

Oracle8iDialect

Method Detail

registerCharacterTypeMappings

registerNumericTypeMappings

registerDateTimeTypeMappings

registerLargeObjectTypeMappings

registerReverseHibernateTypeMappings

registerFunctions

registerDefaultProperties

getSqlTypeDescriptorOverride

createOuterJoinFragment

getCrossJoinSeparator

createCaseFragment

getLimitHandler

getLimitString

getBasicSelectClauseNullString

getSelectClauseNullString

getCurrentTimestampSelectString

getCurrentTimestampSQLFunctionName

getAddColumnString

getSequenceNextValString

getSelectSequenceNextValString

getCreateSequenceString

getCreateSequenceString

getDropSequenceString

getCascadeConstraintsString

dropConstraints

getForUpdateNowaitString

supportsSequences

supportsPooledSequences

supportsLimit

getForUpdateString

getForUpdateNowaitString

bindLimitParametersInReverseOrder

useMaxForLimit

forUpdateOfColumns

getQuerySequencesString

getSelectGUIDString

getViolatedConstraintNameExtracter

buildSQLExceptionConversionDelegate

registerResultSetOutParameter

getResultSet

supportsUnionAll

supportsCommentOn

getDefaultMultiTableBulkIdStrategy

supportsCurrentTimestampSelection

isCurrentTimestampSelectStringCallable

supportsEmptyInList

supportsExistsInSelect

getInExpressionCountLimit

forceLobAsLastValue

useFollowOnLocking

getNotExpression

getQueryHintString

getMaxAliasLength

getCallableStatementSupport

canCreateSchema

getCurrentSchemaCommand

supportsPartitionBy

statementType

supportsNoWait