Package org.hibernate.dialect

Class SQLServer2005Dialect

java.lang.Object
org.hibernate.dialect.Dialect
org.hibernate.dialect.SQLServerDialect
org.hibernate.dialect.SQLServer2005Dialect
Direct Known Subclasses:
SQLServer2008Dialect
public class SQLServer2005Dialect extends SQLServerDialect
A dialect for Microsoft SQL 2005. (HHH-3936 fix)

  • Constructor Details

    • SQLServer2005Dialect

      public SQLServer2005Dialect()

  • Method Details

    • supportsLimitOffset

      public boolean supportsLimitOffset()
      Description copied from class: Dialect
      Does this dialect's LIMIT support (if any) additionally support specifying an offset?
      Overrides:
      supportsLimitOffset in class SQLServerDialect
      Returns:
      True if the dialect supports an offset within the limit support.

    • bindLimitParametersFirst

      public boolean bindLimitParametersFirst()
      Description copied from class: Dialect
      Does the LIMIT clause come at the start of the SELECT statement, rather than at the end?
      Overrides:
      bindLimitParametersFirst in class Dialect
      Returns:
      true if limit parameters should come before other parameters

    • supportsVariableLimit

      public boolean supportsVariableLimit()
      Description copied from class: Dialect
      Does this dialect support bind variables (i.e., prepared statement parameters) for its limit/offset?
      Overrides:
      supportsVariableLimit in class SQLServerDialect
      Returns:
      True if bind variables can be used; false otherwise.

    • convertToFirstRowValue

      public int convertToFirstRowValue(int zeroBasedFirstResult)
      Description copied from class: Dialect
      Hibernate APIs explicitly state that setFirstResult() should be a zero-based offset. Here we allow the Dialect a chance to convert that value based on what the underlying db or driver will expect.

      NOTE: what gets passed into Dialect.getLimitString(String,int,int) is the zero-based offset. Dialects which do not Dialect.supportsVariableLimit() should take care to perform any needed Dialect.convertToFirstRowValue(int) calls prior to injecting the limit values into the SQL string.

      Overrides:
      convertToFirstRowValue in class Dialect
      Parameters:
      zeroBasedFirstResult - The user-supplied, zero-based first row offset.
      Returns:
      The corresponding db/dialect specific offset.
      See Also:

    • getLimitString

      public String getLimitString(String query, int offset, int limit)
      Description copied from class: Dialect
      Given a limit and an offset, apply the limit clause to the query.
      Overrides:
      getLimitString in class SQLServerDialect
      Parameters:
      query - The query to which to apply the limit.
      offset - The offset of the limit
      limit - The limit of the limit ;)
      Returns:
      The modified query statement with the limit applied.

    • getLimitString

      public String getLimitString(String querySqlString, boolean hasOffset)
      Add a LIMIT clause to the given SQL SELECT (HHH-2655: ROW_NUMBER for Paging) The LIMIT SQL will look like: 
       WITH query AS (
   SELECT ROW_NUMBER() OVER (ORDER BY orderby) as __hibernate_row_nr__, 
   original_query_without_orderby
 )
 SELECT * FROM query WHERE __hibernate_row_nr__ BEETWIN offset AND offset + last
      Overrides:
      getLimitString in class Dialect
      Parameters:
      querySqlString - The SQL statement to base the limit query off of.
      hasOffset - Is the query requesting an offset?
      offset - Offset of the first row to be returned by the query (zero-based)
      limit - Maximum number of rows to be returned by the query
      Returns:
      A new SQL statement with the LIMIT clause applied.

    • replaceDistinctWithGroupBy

      protected static void replaceDistinctWithGroupBy(StringBuilder sql)
      Utility method that checks if the given sql query is a select distinct one and if so replaces the distinct select with an equivalent simple select with a group by clause. See
      invalid reference 
      SQLServer2005DialectTestCase#testReplaceDistinctWithGroupBy()
      Parameters:
      sql - an sql query

    • getSelectFieldsWithoutAliases

      protected static CharSequence getSelectFieldsWithoutAliases(StringBuilder sql)
      This utility method searches the given sql query for the fields of the select statement and returns them without the aliases. See
      invalid reference 
      SQLServer2005DialectTestCase#testGetSelectFieldsWithoutAliases()
      Parameters:
      an - sql query
      Returns:
      the fields of the select statement without their alias

    • stripAliases

      protected static String stripAliases(String str)
      Utility method that strips the aliases. See
      invalid reference 
      SQLServer2005DialectTestCase#testStripAliases()
      Parameters:
      a - string to replace the as statements
      Returns:
      a string without the as statements

    • insertRowNumberFunction

      protected static void insertRowNumberFunction(StringBuilder sql, CharSequence orderby)
      Right after the select statement of a given query we must place the row_number function
      Parameters:
      sql - the initial sql query without the order by clause
      orderby - the order by clause of the query

    • 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.

    • getNullColumnString

      public String getNullColumnString()
      Description copied from class: Dialect
      The keyword used to specify a nullable column.
      Overrides:
      getNullColumnString in class Dialect
      Returns:
      String

    • qualifyIndexName

      public boolean qualifyIndexName()
      Description copied from class: Dialect
      Do we need to qualify index names with the schema name?
      Overrides:
      qualifyIndexName in class Dialect
      Returns:
      boolean

    • getForUpdateString

      public String getForUpdateString()
      Description copied from class: Dialect
      Get the string to append to SELECT statements to acquire locks for this dialect.
      Overrides:
      getForUpdateString in class Dialect
      Returns:
      The appropriate FOR UPDATE clause string.

    • supportsIdentityColumns

      public boolean supportsIdentityColumns()
      Description copied from class: Dialect
      Does this dialect support identity column key generation?
      Overrides:
      supportsIdentityColumns in class Dialect
      Returns:
      True if IDENTITY columns are supported; false otherwise.

    • getIdentitySelectString

      public String getIdentitySelectString()
      Description copied from class: Dialect
      Get the select command to use to retrieve the last generated IDENTITY value.
      Overrides:
      getIdentitySelectString in class Dialect
      Returns:
      The appropriate select command

    • getIdentityColumnString

      public String getIdentityColumnString()
      Description copied from class: Dialect
      The syntax used during DDL to define a column as being an IDENTITY.
      Overrides:
      getIdentityColumnString in class Dialect
      Returns:
      The appropriate DDL fragment.

    • supportsInsertSelectIdentity

      public boolean supportsInsertSelectIdentity()
      Description copied from class: Dialect
      Does the dialect support some form of inserting and selecting the generated IDENTITY value all in the same statement.
      Overrides:
      supportsInsertSelectIdentity in class Dialect
      Returns:
      True if the dialect supports selecting the just generated IDENTITY in the insert statement.

    • applyLocksToSql

      public String applyLocksToSql(String sql, LockOptions aliasedLockOptions, Map keyColumnNames)
      Description copied from class: Dialect
      Modifies the given SQL by applying the appropriate updates for the specified lock modes and key columns.

      The behavior here is that of an ANSI SQL SELECT FOR UPDATE. This method is really intended to allow dialects which do not support SELECT FOR UPDATE to achieve this in their own fashion.

      Overrides:
      applyLocksToSql in class Dialect
      Parameters:
      sql - the SQL string to modify
      aliasedLockOptions - lock options indexed by aliased table names.
      keyColumnNames - a map of key columns indexed by aliased table names.
      Returns:
      the modified SQL string.

    • registerResultSetOutParameter

      public int registerResultSetOutParameter(CallableStatement statement, int col) throws SQLException
      Description copied from class: Dialect
      Registers an OUT parameter which will be returning a ResultSet. How this is accomplished varies greatly from DB to DB, hence its inclusion (along with Dialect.getResultSet(java.sql.CallableStatement)) here.
      Overrides:
      registerResultSetOutParameter in class Dialect
      Parameters:
      statement - The callable statement.
      col - The bind position at which to register the OUT param.
      Returns:
      The number of (contiguous) bind positions used.
      Throws:
      SQLException - Indicates problems registering the OUT 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.

    • 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.

    • supportsTemporaryTables

      public boolean supportsTemporaryTables()
      Description copied from class: Dialect
      Does this dialect support temporary tables?
      Overrides:
      supportsTemporaryTables in class Dialect
      Returns:
      True if temp tables are supported; false otherwise.

    • generateTemporaryTableName

      public String generateTemporaryTableName(String baseTableName)
      Description copied from class: Dialect
      Generate a temporary table name given the base table.
      Overrides:
      generateTemporaryTableName in class Dialect
      Parameters:
      baseTableName - The table name from which to base the temp table name.
      Returns:
      The generated temp table name.

    • dropTemporaryTableAfterUse

      public boolean dropTemporaryTableAfterUse()
      Description copied from class: Dialect
      Do we need to drop the temporary table after use?
      Overrides:
      dropTemporaryTableAfterUse in class Dialect
      Returns:
      True if the table should be dropped.

    • 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.

    • 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.

    • 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.

    • 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.

    • supportsTupleDistinctCounts

      public boolean supportsTupleDistinctCounts()
      Description copied from class: Dialect
      Does this dialect support `count(distinct a,b)`?
      Overrides:
      supportsTupleDistinctCounts in class Dialect
      Returns:
      True if the database supports counting disintct tuples; false otherwise.