public Class DB2390Dialect

Overrides org.hibernate.dialect.DB2Dialect.getIdentityColumnSupport.

Doc from org.hibernate.dialect.Dialect.getIdentityColumnSupport.

Get the appropriate IdentityColumnSupport

Returns:IdentityColumnSupport

the IdentityColumnSupport

Annotations

@Override

Overrides org.hibernate.dialect.DB2Dialect.getLimitHandler.

Doc from org.hibernate.dialect.Dialect.getLimitHandler.

Returns the delegate managing LIMIT clause.

Returns:LimitHandler

LIMIT clause delegate.

Annotations

@Override

Overrides org.hibernate.dialect.DB2Dialect.getLimitString.

Doc from org.hibernate.dialect.Dialect.getLimitString.

Given a limit and an offset, apply the limit clause to the query.

Parameters

sql:String

The query to which to apply the limit.

offset:int

The offset of the limit

limit:int

The limit of the limit ;)

Returns:String

The modified query statement with the limit applied.

Annotations

@Override

Overrides org.hibernate.dialect.DB2Dialect.getQuerySequencesString.

Doc from org.hibernate.dialect.Dialect.getQuerySequencesString.

Get the select command used retrieve the names of all sequences.

Returns:String

The select command; or null if sequences are not supported.

Annotations

@Override

Overrides org.hibernate.dialect.DB2Dialect.supportsLimit.

Doc from org.hibernate.dialect.Dialect.supportsLimit.

Does this dialect support some form of limiting query results via a SQL clause?

Returns:boolean

True if this dialect supports some form of LIMIT.

Annotations

@Override

Overrides org.hibernate.dialect.Dialect.supportsLimitOffset.

Doc from org.hibernate.dialect.Dialect.supportsLimitOffset.

Does this dialect's LIMIT support (if any) additionally support specifying an offset?

Returns:boolean

True if the dialect supports an offset within the limit support.

Annotations

@Override

@SuppressWarnings:deprecation

Overrides org.hibernate.dialect.DB2Dialect.supportsSequences.

Doc from org.hibernate.dialect.Dialect.supportsSequences.

Does this dialect support sequences?

Returns:boolean

True if sequences supported; false otherwise.

Annotations

@Override

Overrides org.hibernate.dialect.DB2Dialect.supportsVariableLimit.

Doc from org.hibernate.dialect.Dialect.supportsVariableLimit.

Does this dialect support bind variables (i.e., prepared statement parameters) for its limit/offset?

Returns:boolean

True if bind variables can be used; false otherwise.

Annotations

@Override

Overrides org.hibernate.dialect.DB2Dialect.useMaxForLimit.

Doc from org.hibernate.dialect.Dialect.useMaxForLimit.

Does the LIMIT 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?

Returns:boolean

True if limit is relative from offset; false otherwise.

Annotations

@Override