在存储过程中执行和打印 SQL 查询时出错答案

【问题标题】：Error on execute and print the SQL query in stored procedure在存储过程中执行和打印 SQL 查询时出错
【发布时间】：2015-05-22 11:36:30
【问题描述】：

我正在使用这个存储过程，但它会导致错误。

查询是

declare @min int
declare @mnt int
declare @query varchar(MAx)
declare @finmnth int
declare @divid int
declare @finyear nvarchar(max)

set @divid = 0
set @finmnth = 6
set @finyear = '2014-15'

begin

    if @finmnth = 3 or @finmnth = 2 or @finmnth = 1
       set @min = 13
    else
       set @min = @finmnth

    Set @query = 'select 
                  /* Cummulative Progress */
                      isNull(CONVERT(DECIMAL(10, 3), SUM(case when month between 4 and '+cast(@finmnth AS varchar)+' and mpryear='+cast(@finyear as nvarchar)+' then (IDA+Govt+Benyfe)/100000 else 0 end),2),0) as CUTMTot
                 from 
                     MPR 
                 where 
                     (division = '+cast(@Divid as varchar)+' OR '+cast(@Divid as varchar)+' = 0)'
end 

exec(@query)

错误是

消息 245，第 16 级，状态 1，第 1 行
将 nvarchar 值“2013-14”转换为数据类型 int 时转换失败。

【问题讨论】：

标签： sql sql-server stored-procedures

【解决方案1】：

试试这个。您错过了 @finyear 变量周围的其他引号。在这种情况下打印出您的声明是个好主意：PRINT @query。你会看到你的陈述是怎样的。

DECLARE @min INT
DECLARE @mnt INT
DECLARE @query VARCHAR(MAX)
DECLARE @finmnth INT
DECLARE @divid INT
DECLARE @finyear NVARCHAR(MAX)

SET @divid = 0
SET @finmnth = 6
SET @finyear = '2014-15'

BEGIN

    IF @finmnth = 3
        OR @finmnth = 2
        OR @finmnth = 1
        SET @min = 13
    ELSE
        SET @min = @finmnth

    SET @query = 'select 
                  /* Cummulative Progress */
                      isNull(CONVERT(DECIMAL(10, 3), SUM(case when month between 4 and '
        + CAST(@finmnth AS VARCHAR) + ' and mpryear='''/*here*/
        + CAST(@finyear AS NVARCHAR)
        + /*and here*/''' then (IDA+Govt+Benyfe)/100000 else 0 end),2),0) as CUTMTot
                 from 
                     MPR 
                 where 
                     (division = ' + CAST(@Divid AS VARCHAR) + ' OR '
        + CAST(@Divid AS VARCHAR) + ' = 0)'
END 

EXEC(@query)

【讨论】：