Question

这是我的SQL游标的片段，它可以正常工作。但我现在想要将多个参数传递给@sql。

请参阅第二个代码段中的评论。我用谷歌搜索了，但我似乎无法找到答案。

set @sql = N' use TESTDOMAINDATABASE' + convert(nvarchar, @domainID) + @NewLineChar  +
           N' select @subDomain = (select subDomain from tblDomains (nolock))'

execute sp_executesql @sql, N'@subDomain nvarchar(500) output', @subDomain output

print 'subDomain is ' + @subDomain + ' and the domainID is ' + convert(nvarchar,@domainID)

但是，我想说我想要tblDomains中的另一列（比如domainName）。

我如何更新上述声明？

set @sql = N' use TESTDOMAINDATABASE' + convert(nvarchar, @domainID) + @NewLineChar  +
           N' select @subDomain = (select subDomain from tblDomains (nolock))' + @NewLineChar  + 
           N'select @domainName = (select domainName from tblDomains(nolock))'

execute sp_executesql @sql, N'@subDomain nvarchar(500) output', @subDomain output /* How do I pass multiple paramaters here ? */
execute sp_executesql @sql, N'@domainName nvarchar(500) output', @domainName output /*Adding a 2nd line does not do the trick - results in an error that I must declare the scalar variable @domainName */

print 'subDomain is ' + @subDomain + ' and the domainID is ' + convert(nvarchar,@domainID) + ' +  and the domain name is ' @domainName'

Answer 1

你是说这个意思吗？每个数据库的tblDomains表中只有一行吗？

set @sql = N' use TESTDOMAINDATABASE' + convert(nvarchar, @domainID) + @NewLineChar  +
           N' select @subDomain = subDomain, @domainName = domainName 
              from tblDomains (nolock);'

execute sp_executesql @sql, 
    N'@subDomain nvarchar(500) output, @domainName nvarchar(500) output', 
    @subDomain output, @domainName output;

print 'subDomain is ' + @subDomain + ' and the domainID is ' + convert(nvarchar,@domainID)

Answer 2

您可以将多个以逗号分隔的参数传递给sp_executesql。

DECLARE @sql nvarchar(MAX)
DECLARE @x nvarchar(25)
DECLARE @y nvarchar(25)

SET @sql = N'SELECT @x = ''hello'', @y = ''world'''

execute sp_executesql @sql, N'@x nvarchar(25) output, @y nvarchar(25) output'
       ,@x output
       ,@y output

PRINT @x + ' ' + @y

将多个参数传递给sql游标输出

2 个答案: