我有一个存储过程，它返回80列和300行。我要写一个select函数，它能得到2个这样的列。类似的
SELECT col1, col2 FROM EXEC MyStoredProc 'param1', 'param2'
当我使用上面的语法时，我得到了错误:
“无效的列名”。
我知道最简单的解决方案是更改存储过程，但我没有编写它，也不能更改它。
有什么办法能让我如愿以偿吗?
I could make a temp table to put the results in, but because there are 80 columns so I would need to make an 80 column temp table just to get 2 columns. I wanted to avoid tracking down all the columns that are returned.
I tried using WITH SprocResults AS .... as suggested by Mark, but I got 2 errors
Incorrect syntax near the keyword 'EXEC'.Incorrect syntax near ')'.
I tried declaring a table variable and I got the following error
Insert Error: Column name or number of supplied values does not match table definition
If I try
SELECT * FROM EXEC MyStoredProc 'param1', 'param2'
I get the error :
Incorrect syntax near the keyword 'exec'.
对于任何使用SQL 2012或更高版本的用户，我都能够使用非动态且每次都有相同列输出的存储过程来实现这一点。
总体思想是构建动态查询来创建、插入、选择和删除临时表，并在生成所有临时表后执行。首先从存储过程中检索列名和类型，动态生成临时表。
注意:如果您愿意/能够更新SP或更改配置并使用OPENROWSET，那么有更好、更通用的解决方案，它们只需要更少的代码行。如果没有其他方法，请使用下面的方法。
DECLARE @spName VARCHAR(MAX) = 'MyStoredProc'
DECLARE @tempTableName VARCHAR(MAX) = '#tempTable'
-- might need to update this if your param value is a string and you need to escape quotes
DECLARE @insertCommand VARCHAR(MAX) = 'INSERT INTO ' + @tempTableName + ' EXEC MyStoredProc @param=value'
DECLARE @createTableCommand VARCHAR(MAX)
-- update this to select the columns you want
DECLARE @selectCommand VARCHAR(MAX) = 'SELECT col1, col2 FROM ' + @tempTableName
DECLARE @dropCommand VARCHAR(MAX) = 'DROP TABLE ' + @tempTableName
-- Generate command to create temp table
SELECT @createTableCommand = 'CREATE TABLE ' + @tempTableName + ' (' +
STUFF
(
(
SELECT ', ' + CONCAT('[', name, ']', ' ', system_type_name)
FROM sys.dm_exec_describe_first_result_set_for_object
(
OBJECT_ID(@spName),
NULL
)
FOR XML PATH('')
)
,1
,1
,''
) + ')'
EXEC( @createTableCommand + ' '+ @insertCommand + ' ' + @selectCommand + ' ' + @dropCommand)
要实现这一点，首先你创建一个#test_table，如下所示:
create table #test_table(
col1 int,
col2 int,
.
.
.
col80 int
)
现在执行过程并将值放在#test_table中:
insert into #test_table
EXEC MyStoredProc 'param1', 'param2'
现在你从#test_table中获取值:
select col1,col2....,col80 from #test_table
创建一个动态视图，并从中获得结果.......
CREATE PROCEDURE dbo.usp_userwise_columns_value
(
@userid BIGINT
)
AS
BEGIN
DECLARE @maincmd NVARCHAR(max);
DECLARE @columnlist NVARCHAR(max);
DECLARE @columnname VARCHAR(150);
DECLARE @nickname VARCHAR(50);
SET @maincmd = '';
SET @columnname = '';
SET @columnlist = '';
SET @nickname = '';
DECLARE CUR_COLUMNLIST CURSOR FAST_FORWARD
FOR
SELECT columnname , nickname
FROM dbo.v_userwise_columns
WHERE userid = @userid
OPEN CUR_COLUMNLIST
IF @@ERROR <> 0
BEGIN
ROLLBACK
RETURN
END
FETCH NEXT FROM CUR_COLUMNLIST
INTO @columnname, @nickname
WHILE @@FETCH_STATUS = 0
BEGIN
SET @columnlist = @columnlist + @columnname + ','
FETCH NEXT FROM CUR_COLUMNLIST
INTO @columnname, @nickname
END
CLOSE CUR_COLUMNLIST
DEALLOCATE CUR_COLUMNLIST
IF NOT EXISTS (SELECT * FROM sys.views WHERE name = 'v_userwise_columns_value')
BEGIN
SET @maincmd = 'CREATE VIEW dbo.v_userwise_columns_value AS SELECT sjoid, CONVERT(BIGINT, ' + CONVERT(VARCHAR(10), @userid) + ') as userid , '
+ CHAR(39) + @nickname + CHAR(39) + ' as nickname, '
+ @columnlist + ' compcode FROM dbo.SJOTran '
END
ELSE
BEGIN
SET @maincmd = 'ALTER VIEW dbo.v_userwise_columns_value AS SELECT sjoid, CONVERT(BIGINT, ' + CONVERT(VARCHAR(10), @userid) + ') as userid , '
+ CHAR(39) + @nickname + CHAR(39) + ' as nickname, '
+ @columnlist + ' compcode FROM dbo.SJOTran '
END
--PRINT @maincmd
EXECUTE sp_executesql @maincmd
END
-----------------------------------------------
SELECT * FROM dbo.v_userwise_columns_value
