gerar séries sybase
/* Sybase 9 / Sql Anyware */
CREATE PROCEDURE generate_series(in @BeginData DateTime, in @EndDate DateTime, in @DatePart varchar(32) DEFAULT '1 day')
RESULT (item Datetime)
BEGIN
DECLARE LOCAL TEMPORARY TABLE @Serie (
item Datetime
)ON COMMIT PRESERVE ROWS;
declare @arg varchar(32);
declare @len integer;
declare @pos integer;
declare @Data DateTime;
declare @DatePartType varchar(11);
declare @DatePartIncrement integer;
SET @arg = TRIM(@DatePart);
SET @pos = CHARINDEX(' ', @arg );
SET @len = LENGTH(@arg);
SET @DatePartIncrement = CAST(LEFT(@arg, @pos) as integer);
SET @DatePartType = RIGHT(@arg, @len - @pos);
SET @Data = @BeginData;
WHILE (@Data <= @EndDate) LOOP
print('Data ' || @Data);
INSERT INTO @Serie(item) VALUES( @Data );
SET @Data = CASE 100
WHEN SIMILAR( @DatePartType, 'year' ) THEN dateadd(year , @DatePartIncrement, @Data )
WHEN SIMILAR( @DatePartType, 'quarter' ) THEN dateadd(quarter , @DatePartIncrement, @Data )
WHEN SIMILAR( @DatePartType, 'month' ) THEN dateadd(month , @DatePartIncrement, @Data )
WHEN SIMILAR( @DatePartType, 'day' ) THEN dateadd(day , @DatePartIncrement, @Data )
WHEN SIMILAR( @DatePartType, 'week' ) THEN dateadd(week, @DatePartIncrement, @Data )
WHEN SIMILAR( @DatePartType, 'hour' ) THEN dateadd(hour , @DatePartIncrement, @Data )
WHEN SIMILAR( @DatePartType, 'minute' ) THEN dateadd(minute , @DatePartIncrement, @Data )
WHEN SIMILAR( @DatePartType, 'second' ) THEN dateadd(second , @DatePartIncrement, @Data )
WHEN SIMILAR( @DatePartType, 'millisecond' ) THEN dateadd(millisecond , @DatePartIncrement, @Data )
ELSE dateadd( day, @DatePartIncrement, @Data ) END
END LOOP;
SELECT * FROM @Serie;
-- SELECT * FROM vw_generate_series_TEST
END;
/* View com Testes */
ALTER VIEW vw_generate_series_TEST as
SELECT 1 as Test, '2001-01-01 00:00:00.000' as BeginDateArg, '2010-12-31 00:00:00.000' as EndDateArg, '1 year ' as DatePartArg, 10 OK, Count(*) QT, CASE WHEN (OK=QT) THEN ' OK ' ELSE 'FALHOU' END Status FROM generate_series(BeginDateArg, EndDateArg, DatePartArg) A union
SELECT 2 as Test, '2010-01-01 00:00:00.000' as BeginDateArg, '2010-12-31 00:00:00.000' as EndDateArg, '1 quarter ' as DatePartArg, 4 OK, Count(*) QT, CASE WHEN (OK=QT) THEN ' OK ' ELSE 'FALHOU' END Status FROM generate_series(BeginDateArg, EndDateArg, DatePartArg) A union
SELECT 3 as Test, '2010-01-01 00:00:00.000' as BeginDateArg, '2010-12-31 00:00:00.000' as EndDateArg, '1 month ' as DatePartArg, 12 OK, Count(*) QT, CASE WHEN (OK=QT) THEN ' OK ' ELSE 'FALHOU' END Status FROM generate_series(BeginDateArg, EndDateArg, DatePartArg) A union
SELECT 4 as Test, '2010-01-01 00:00:00.000' as BeginDateArg, '2010-01-31 00:00:00.000' as EndDateArg, '1 day ' as DatePartArg, 31 OK, Count(*) QT, CASE WHEN (OK=QT) THEN ' OK ' ELSE 'FALHOU' END Status FROM generate_series(BeginDateArg, EndDateArg, DatePartArg) A union
SELECT 5 as Test, '2010-01-01 00:00:00.000' as BeginDateArg, '2010-01-31 00:00:00.000' as EndDateArg, '1 week ' as DatePartArg, 5 OK, Count(*) QT, CASE WHEN (OK=QT) THEN ' OK ' ELSE 'FALHOU' END Status FROM generate_series(BeginDateArg, EndDateArg, DatePartArg) A union
SELECT 6 as Test, '2010-01-01 00:00:00.000' as BeginDateArg, '2010-01-01 23:59:59.000' as EndDateArg, '1 hour ' as DatePartArg, 24 OK, Count(*) QT, CASE WHEN (OK=QT) THEN ' OK ' ELSE 'FALHOU' END Status FROM generate_series(BeginDateArg, EndDateArg, DatePartArg) A union
SELECT 7 as Test, '2010-01-01 23:00:00.000' as BeginDateArg, '2010-01-01 23:59:59.000' as EndDateArg, '1 minute ' as DatePartArg, 60 OK, Count(*) QT, CASE WHEN (OK=QT) THEN ' OK ' ELSE 'FALHOU' END Status FROM generate_series(BeginDateArg, EndDateArg, DatePartArg) A union
SELECT 8 as Test, '2010-01-01 23:00:01.000' as BeginDateArg, '2010-01-01 23:01:00.000' as EndDateArg, '1 second ' as DatePartArg, 60 OK, Count(*) QT, CASE WHEN (OK=QT) THEN ' OK ' ELSE 'FALHOU' END Status FROM generate_series(BeginDateArg, EndDateArg, DatePartArg) A union
SELECT 9 as Test, '2010-01-01 23:00:00.001' as BeginDateArg, '2010-01-01 23:00:01.000' as EndDateArg, '1 millisecond' as DatePartArg, 1000 OK, Count(*) QT, CASE WHEN (OK=QT) THEN ' OK ' ELSE 'FALHOU' END Status FROM generate_series(BeginDateArg, EndDateArg, DatePartArg) A
ORDER BY 1
Luis Alfredo G Caldas Neto