[英]How to get stored procedure output parameter into variable using Powershell?
我有一个存储过程返回一个字符串,我需要结果作为powershell变量。 我坚持输出参数语法。
Powershell脚本:
$SqlConnection = New-Object System.Data.SqlClient.SqlConnection
$SqlConnection.ConnectionString = "Server=myserver;Database=mydb;Integrated Security=True"
$SqlConnection.Open()
$SqlConnection.State
$SqlCmd = New-Object System.Data.SqlClient.SqlCommand
$SqlCmd.CommandText = "testsp3"
$SqlCmd.Connection = $SqlConnection
$op = new-object System.Data.SqlClient.SqlParameter;
$op.ParameterName = "@answer";
$op.Direction = [System.Data.ParameterDirection]'Output';
$op.DbType = [System.Data.DbType]'String';
$op.Size = 2500
$SqlCmd.Parameters.Add($op);
$what = $SqlCmd.ExecuteScalar();
$what
错误信息:
使用“0”参数调用“ExecuteScalar”的异常:“过程或函数'testsp3'需要参数'@answer',这是未提供的。”
存储过程如果重要:
CREATE PROCEDURE [dbo].[testsp3]
@answer nvarchar(max) output
AS
BEGIN
SET NOCOUNT ON;
SELECT @answer = 'blah blah blah'
RETURN
END
GO
修改您的脚本如下所示
$SqlConnection = New-Object System.Data.SqlClient.SqlConnection
$SqlConnection.ConnectionString = "Server=myserver;Database=mydb;Integrated Security=True"
$SqlCmd = New-Object System.Data.SqlClient.SqlCommand
$SqlCmd.CommandText = "testsp3"
$SqlCmd.Connection = $SqlConnection
$SqlCmd.CommandType = [System.Data.CommandType]'StoredProcedure'; <-- Missing
$outParameter = new-object System.Data.SqlClient.SqlParameter;
$outParameter.ParameterName = "@answer";
$outParameter.Direction = [System.Data.ParameterDirection]'Output';
$outParameter.DbType = [System.Data.DbType]'String';
$outParameter.Size = 2500;
$SqlCmd.Parameters.Add($outParameter) >> $null;
$SqlConnection.Open();
$result = $SqlCmd.ExecuteNonQuery();
$truth = $SqlCmd.Parameters["@answer"].Value;
$SqlConnection.Close();
$truth;
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.