71 lines
1.3 KiB
Transact-SQL
71 lines
1.3 KiB
Transact-SQL
-- This version displays actual execution times.
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-- Beware that according to SQL Server licensing, it is not allowed to publish benchmark results
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DECLARE @ts DATETIME;
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DECLARE @repeat INT = 10000;
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DECLARE @r INT;
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DECLARE @i INT;
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DECLARE @dummy VARCHAR;
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DECLARE @s1 CURSOR;
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DECLARE @s2 CURSOR;
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SET @r = 0;
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WHILE @r < 5
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BEGIN
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SET @r = @r + 1
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SET @s1 = CURSOR FOR
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-- Paste statement 1 here
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SELECT 1 x;
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SET @s2 = CURSOR FOR
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-- Paste statement 2 here
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WITH t(v) AS (
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SELECT 1
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UNION ALL
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SELECT v + 1 FROM t WHERE v < 10
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)
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SELECT * FROM t
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SET @ts = current_timestamp;
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SET @i = 0;
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WHILE @i < @repeat
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BEGIN
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SET @i = @i + 1
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OPEN @s1;
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FETCH NEXT FROM @s1 INTO @dummy;
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WHILE @@FETCH_STATUS = 0
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BEGIN
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FETCH NEXT FROM @s1 INTO @dummy;
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END;
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CLOSE @s1;
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END;
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DEALLOCATE @s1;
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PRINT 'Run ' + @r + ', Statement 1: ' + CAST(DATEDIFF(ms, @ts, current_timestamp) AS VARCHAR) + 'ms';
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SET @ts = current_timestamp;
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SET @i = 0;
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WHILE @i < @repeat
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BEGIN
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SET @i = @i + 1
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OPEN @s2;
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FETCH NEXT FROM @s2 INTO @dummy;
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WHILE @@FETCH_STATUS = 0
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BEGIN
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FETCH NEXT FROM @s2 INTO @dummy;
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END;
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CLOSE @s2;
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END;
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DEALLOCATE @s2;
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PRINT 'Run ' + @r + ', Statement 2: ' + CAST(DATEDIFF(ms, @ts, current_timestamp) AS VARCHAR) + 'ms';
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PRINT '';
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END;
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