public class DB2400Dialect extends DB2Dialect
An SQL dialect for DB2/400. This class provides support for DB2 Universal Database for iSeries, also known as DB2/400.
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 and Description |
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DB2400Dialect() |
Modifier and Type | Method and Description |
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String |
getForUpdateString()
Get the string to append to SELECT statements to acquire locks
for this dialect.
|
IdentityColumnSupport |
getIdentityColumnSupport()
Get the appropriate
IdentityColumnSupport |
LimitHandler |
getLimitHandler()
Returns the delegate managing LIMIT clause.
|
String |
getLimitString(String sql,
int offset,
int limit)
Given a limit and an offset, apply the limit clause to the query.
|
String |
getQuerySequencesString()
Get the select command used retrieve the names of all sequences.
|
boolean |
supportsLimit()
Does this dialect support some form of limiting query results
via a SQL clause?
|
boolean |
supportsLimitOffset()
Does this dialect’s LIMIT support (if any) additionally
support specifying an offset?
|
boolean |
supportsSequences()
Does this dialect support sequences?
|
boolean |
supportsVariableLimit()
Does this dialect support bind variables (i.e., prepared statement
parameters) for its limit/offset?
|
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.
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buildSQLExceptionConversionDelegate, convertToFirstRowValue, doesReadCommittedCauseWritersToBlockReaders, dropConstraints, getAddColumnString, getCreateSequenceString, getCrossJoinSeparator, getCurrentTimestampSelectString, getDefaultMultiTableBulkIdStrategy, getDropSequenceString, getLowercaseFunction, getNotExpression, getResultSet, getSelectClauseNullString, getSelectSequenceNextValString, getSequenceNextValString, getSqlTypeDescriptorOverride, getUniqueDelegate, isCurrentTimestampSelectStringCallable, registerResultSetOutParameter, renderOrderByElement, requiresCastingOfParametersInSelectClause, supportsCommentOn, supportsCurrentTimestampSelection, supportsEmptyInList, supportsExistsInSelect, supportsLobValueChangePropogation, supportsLockTimeouts, supportsOuterJoinForUpdate, supportsParametersInInsertSelect, supportsPartitionBy, supportsPooledSequences, supportsResultSetPositionQueryMethodsOnForwardOnlyCursor, supportsTupleDistinctCounts, supportsUnionAll
addSqlHintOrComment, appendLockHint, appendLockHint, applyLocksToSql, areStringComparisonsCaseInsensitive, augmentRecognizedTableTypes, bindLimitParametersFirst, bindLimitParametersInReverseOrder, buildIdentifierHelper, buildSQLExceptionConverter, canCreateCatalog, canCreateSchema, cast, cast, cast, closeQuote, contributeTypes, createCaseFragment, createOuterJoinFragment, defaultScrollMode, doesRepeatableReadCauseReadersToBlockWriters, escapeLiteral, forceLimitUsage, forceLobAsLastValue, forUpdateOfColumns, getAddColumnSuffixString, getAddForeignKeyConstraintString, getAddForeignKeyConstraintString, getAddPrimaryKeyConstraintString, getAddUniqueConstraintString, getAlterTableString, getAuxiliaryDatabaseObjectExporter, getCallableStatementSupport, getCascadeConstraintsString, getCaseInsensitiveLike, getCastTypeName, getColumnAliasExtractor, getColumnComment, getCreateCatalogCommand, getCreateMultisetTableString, getCreateSchemaCommand, getCreateSequenceString, getCreateSequenceStrings, getCreateSequenceStrings, getCreateTableString, getCurrentSchemaCommand, getCurrentTimestampSQLFunctionName, getDefaultBatchLoadSizingStrategy, getDefaultProperties, getDialect, getDialect, getDropCatalogCommand, getDropForeignKeyString, getDropSchemaCommand, getDropSequenceStrings, getDropTableString, getForeignKeyExporter, getForUpdateNowaitString, getForUpdateNowaitString, getForUpdateSkipLockedString, getForUpdateSkipLockedString, getForUpdateString, getForUpdateString, getForUpdateString, getForUpdateString, getFunctions, getHibernateTypeName, getHibernateTypeName, getIndexExporter, getInExpressionCountLimit, getKeywords, getLimitString, getLobMergeStrategy, getLockingStrategy, getMaxAliasLength, getNameQualifierSupport, getNativeIdentifierGeneratorClass, getNativeIdentifierGeneratorStrategy, getNoColumnsInsertString, getNullColumnString, getQueryHintString, getQueryHintString, getReadLockString, getReadLockString, getResultSet, getResultSet, getSchemaNameResolver, getSelectGUIDString, getSequenceExporter, getSequenceInformationExtractor, getTableComment, getTableExporter, getTableTypeString, getTypeName, getTypeName, getUniqueKeyExporter, getViolatedConstraintNameExtracter, getWriteLockString, getWriteLockString, hasAlterTable, hasSelfReferentialForeignKeyBug, inlineLiteral, isJdbcLogWarningsEnabledByDefault, isLegacyLimitHandlerBehaviorEnabled, isLockTimeoutParameterized, isTypeNameRegistered, openQuote, prependComment, qualifyIndexName, quote, registerColumnType, registerColumnType, registerFunction, registerHibernateType, registerHibernateType, registerKeyword, registerResultSetOutParameter, remapSqlTypeDescriptor, replaceResultVariableInOrderByClauseWithPosition, requiresParensForTupleDistinctCounts, supportsBindAsCallableArgument, supportsCascadeDelete, supportsCaseInsensitiveLike, supportsCircularCascadeDeleteConstraints, supportsColumnCheck, supportsExpectedLobUsagePattern, supportsIfExistsAfterAlterTable, supportsIfExistsAfterConstraintName, supportsIfExistsAfterTableName, supportsIfExistsBeforeConstraintName, supportsIfExistsBeforeTableName, supportsNamedParameters, supportsNationalizedTypes, supportsNonQueryWithCTE, supportsNotNullUnique, supportsNoWait, supportsRowValueConstructorSyntax, supportsRowValueConstructorSyntaxInInList, supportsSkipLocked, supportsSubqueryOnMutatingTable, supportsSubselectAsInPredicateLHS, supportsTableCheck, supportsTupleCounts, supportsTuplesInSubqueries, supportsUnboundedLobLocatorMaterialization, supportsUnique, supportsUniqueConstraintInCreateAlterTable, supportsValuesList, toBooleanValueString, toString, transformSelectString, useFollowOnLocking, useFollowOnLocking, useInputStreamToInsertBlob
public boolean supportsSequences()
Dialect
Does this dialect support sequences?
supportsSequences
in class DB2Dialect
public boolean supportsLimit()
Dialect
Does this dialect support some form of limiting query results via a SQL clause?
supportsLimit
in class DB2Dialect
public String getQuerySequencesString()
Dialect
Get the select command used retrieve the names of all sequences.
getQuerySequencesString
in class DB2Dialect
SchemaUpdate
public boolean supportsLimitOffset()
Dialect
Does this dialect’s LIMIT support (if any) additionally support specifying an offset?
supportsLimitOffset
in class Dialect
public boolean useMaxForLimit()
Dialect
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. 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) <p/> So essentially, is limit relative from offset? Or is limit absolute?
useMaxForLimit
in class DB2Dialect
public boolean supportsVariableLimit()
Dialect
Does this dialect support bind variables (i.e., prepared statement parameters) for its limit/offset?
supportsVariableLimit
in class DB2Dialect
public String getLimitString(String sql, int offset, int limit)
Dialect
Given a limit and an offset, apply the limit clause to the query.
getLimitString
in class DB2Dialect
sql
- The query to which to apply the limit.offset
- The offset of the limitlimit
- The limit of the limit ;)public LimitHandler getLimitHandler()
Dialect
Returns the delegate managing LIMIT clause.
getLimitHandler
in class DB2Dialect
public String getForUpdateString()
Dialect
Get the string to append to SELECT statements to acquire locks for this dialect.
getForUpdateString
in class DB2Dialect
public IdentityColumnSupport getIdentityColumnSupport()
Dialect
Get the appropriate IdentityColumnSupport
getIdentityColumnSupport
in class DB2Dialect
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