• SQL server2014数据库存储过程 实现游标循环读取 循环插入数据


    USE [Text]
    GO
    /****** Object:  StoredProcedure [dbo].[TT]    Script Date: 2020/3/6 11:37:45 ******/
    SET ANSI_NULLS ON
    GO
    SET QUOTED_IDENTIFIER ON
    GO
    -- =============================================
    -- Author:        <Author,,Name>
    -- Create date: <Create Date,,>
    -- Description:    <Description,,>
    -- =============================================
    ALTER PROCEDURE [dbo].[TT]
    @IID INT
    
    AS
    BEGIN
        -- SET NOCOUNT ON added to prevent extra result sets from
        -- interfering with SELECT statements.
        SET NOCOUNT ON;
        DECLARE @ID INT ,@NAME varchar(50)
    DECLARE My_Cursor CURSOR --定义游标
    FOR (SELECT * FROM Table2 WHERE ID=@IID) --查出需要的集合放到游标中
    OPEN My_Cursor; --打开游标
    FETCH NEXT FROM My_Cursor INTO @ID,@NAME; --读取第一行数据(将MemberAccount表中的UserId放到@UserId变量中)
    WHILE @@FETCH_STATUS = 0
        BEGIN
          PRINT @NAME; --打印数据(打印MemberAccount表中的UserId)
            INSERT INTO Table3 VALUES(@NAME)
           FETCH NEXT FROM My_Cursor INTO @ID,@NAME; 
        END
    
    CLOSE My_Cursor; --关闭游标
    DEALLOCATE My_Cursor; --释放游标
    END

    c# 调用代码:

     // 数据库连接字符串
                string connStr = "数据库连接字符串“;
                // 创建Connection 对象
                SqlConnection conn = new SqlConnection(connStr);
                // 打开数据库连接
                conn.Open();
                SqlCommand cmd = new SqlCommand("TT", conn);
                cmd.CommandType = CommandType.StoredProcedure;
                cmd.Parameters.Add(new SqlParameter("@IID", SqlDbType.Int) { Value = 1 });
                //如cmd.Parameters.Add(new SqlParameter("@riqi", SqlDbType.DateTime, 8));
                //把具体的值传给输入参数
                cmd.Parameters["@IID"].Value = 2;
                //如cmd.Parameters["@riqi"].Value = this.textBox1.Text;
                //执行存储过程
                cmd.ExecuteNonQuery();
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  • 原文地址:https://www.cnblogs.com/huandong963/p/12425712.html
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