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- Type Parameters:
T
- The function return type
- All Known Subinterfaces:
AggregateFilterStep<T>
,AggregateFunction<T>
,ArrayAggOrderByStep<T>
,GroupConcatOrderByStep
,GroupConcatSeparatorStep
,WindowBeforeOverStep<T>
,WindowFromFirstLastStep<T>
,WindowIgnoreNullsStep<T>
public interface WindowOverStep<T>
This type is used for the window function DSL API.Example:
field.firstValue() .ignoreNulls() .over() .partitionBy(AUTHOR_ID) .orderBy(PUBLISHED_IN.asc()) .rowsBetweenUnboundedPreceding() .andUnboundedFollowing()
Unlike in
WindowBeforeOverStep
,OVER()
is a mandatory clause.- Author:
- Lukas Eder
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description WindowPartitionByStep<T>
over()
Turn this aggregate function into a window function.WindowFinalStep<T>
over(String name)
Turn this aggregate function into a window function referencing a window name.WindowFinalStep<T>
over(Name name)
Turn this aggregate function into a window function referencing a window name.WindowFinalStep<T>
over(WindowDefinition definition)
Turn this aggregate function into a window function referencing a window definition.WindowFinalStep<T>
over(WindowSpecification specification)
Turn this aggregate function into a window function.
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Method Detail
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over
@Support({AURORA_POSTGRES,COCKROACHDB,CUBRID,DB2,DERBY,FIREBIRD_3_0,H2,HANA,HSQLDB,INFORMIX,MARIADB,MEMSQL,MYSQL_8_0,ORACLE,POSTGRES,REDSHIFT,SQLDATAWAREHOUSE,SQLITE,SQLSERVER,SYBASE,TERADATA,VERTICA}) WindowPartitionByStep<T> over()
Turn this aggregate function into a window function.An example:
MAX(id) OVER (PARTITION BY 1)
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over
@Support({AURORA_POSTGRES,COCKROACHDB,CUBRID,DB2,FIREBIRD_3_0,H2,HANA,INFORMIX,MARIADB,MEMSQL,MYSQL_8_0,ORACLE,POSTGRES,REDSHIFT,SQLDATAWAREHOUSE,SQLITE,SQLSERVER,SYBASE,TERADATA,VERTICA}) WindowFinalStep<T> over(Name name)
Turn this aggregate function into a window function referencing a window name.An example:
MAX(id) OVER my_window
If the
WINDOW
clause is not supported (seeSelectWindowStep.window(WindowDefinition...)
, then referenced windows will be inlined.
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over
@Support({AURORA_POSTGRES,COCKROACHDB,CUBRID,DB2,FIREBIRD_3_0,H2,HANA,INFORMIX,MARIADB,MEMSQL,MYSQL_8_0,ORACLE,POSTGRES,REDSHIFT,SQLDATAWAREHOUSE,SQLITE,SQLSERVER,SYBASE,TERADATA,VERTICA}) WindowFinalStep<T> over(String name)
Turn this aggregate function into a window function referencing a window name.An example:
MAX(id) OVER my_window
If the
WINDOW
clause is not supported (seeSelectWindowStep.window(WindowDefinition...)
, then referenced windows will be inlined.
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over
@Support({AURORA_POSTGRES,COCKROACHDB,CUBRID,DB2,FIREBIRD_3_0,H2,HANA,INFORMIX,MARIADB,MEMSQL,MYSQL_8_0,ORACLE,POSTGRES,REDSHIFT,SQLDATAWAREHOUSE,SQLITE,SQLSERVER,SYBASE,TERADATA,VERTICA}) WindowFinalStep<T> over(WindowSpecification specification)
Turn this aggregate function into a window function.An example:
MAX(id) OVER (PARTITION BY 1)
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over
@Support({AURORA_POSTGRES,COCKROACHDB,CUBRID,DB2,FIREBIRD_3_0,H2,HANA,INFORMIX,MARIADB,MEMSQL,MYSQL_8_0,ORACLE,POSTGRES,SQLDATAWAREHOUSE,SQLITE,SQLSERVER,SYBASE,TERADATA,VERTICA}) WindowFinalStep<T> over(WindowDefinition definition)
Turn this aggregate function into a window function referencing a window definition.An example:
MAX(id) OVER my_window
If the
WINDOW
clause is not supported (seeSelectWindowStep.window(WindowDefinition...)
, then referenced windows will be inlined.
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