sqlserver 行转列

第一种

SELECT title,
SUM(CASE typeid WHEN ‘1‘ THEN gjdate ELSE 0 END) AS ‘调休‘,
SUM(CASE typeid WHEN ‘2‘ THEN gjdate ELSE 0 END) AS ‘请假‘,
SUM(CASE typeid WHEN ‘3‘ THEN gjdate ELSE 0 END) AS ‘加班‘
FROM lfil_tb
GROUP BY title

第二种



DECLARE @sql_str NVARCHAR(MAX)
DECLARE @sql_col NVARCHAR(MAX)
DECLARE @tableName SYSNAME --表名
DECLARE @groupColumn SYSNAME --分组字段(title name 什么玩意的)
DECLARE @row2column SYSNAME --行转列的字段
DECLARE @row2columnValue SYSNAME --行变列值的字段
SET @tableName = ‘lfil_tb‘
SET @groupColumn = ‘title‘
SET @row2column = ‘typeid‘
SET @row2columnValue = ‘gjdate‘

--从行数据中获取可能存在的列
SET @sql_str = N‘
SELECT @sql_col_out = ISNULL(@sql_col_out + ‘‘,‘‘,‘‘‘‘) + QUOTENAME([‘+@row2column+‘]) 
FROM [‘+@tableName+‘] GROUP BY [‘+@row2column+‘]‘
--PRINT @sql_str
EXEC sp_executesql @sql_str,N‘@sql_col_out NVARCHAR(MAX) OUTPUT‘,@sql_col_out=@sql_col OUTPUT
--PRINT @sql_col

SET @sql_str = N‘
SELECT * FROM (
SELECT [‘+@groupColumn+‘],[‘+@row2column+‘],[‘+@row2columnValue+‘] FROM [‘+@tableName+‘]) p PIVOT 
(SUM([‘+@row2columnValue+‘]) FOR [‘+@row2column+‘] IN ( ‘+ @sql_col +‘) ) AS pvt 
ORDER BY pvt.[‘+@groupColumn+‘]‘
--PRINT (@sql_str)
EXEC (@sql_str)