存储过程分页

最新推荐文章于 2024-09-05 18:50:50 发布

Helis海狸

最新推荐文章于 2024-09-05 18:50:50 发布

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分类专栏： SQL C# 文章标签： c# SQL

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USE [OlightAppCenter]
GO
/****** Object:  StoredProcedure [dbo].[usp_CommonViewPager]    Script Date: 2019/1/8 17:11:17 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER PROCEDURE [dbo].[usp_CommonViewPager] (
    @tableName VARCHAR(800),        --表名
    @fieldName VARCHAR(800) = '*',        --查询字段
    @keyName VARCHAR(200) = 'Id',            --索引字段
    @pageSize INT = 20,                    --每页记录数
    @pageNum INT =0,                    --当前页
    @orderString VARCHAR(200),        --排序条件
    @whereString VARCHAR(800) = '1=1',        --WHERE条件
    @recordTotal INT OUTPUT            --输出记录总数

)
AS
BEGIN
     DECLARE @beginRow INT
     DECLARE @endRow INT
     DECLARE @tempLimit VARCHAR(200)
     DECLARE @tempCount NVARCHAR(1000)
     DECLARE @tempMain VARCHAR(1000)
     --declare @timediff datetime 
     
     set nocount on
     --select @timediff=getdate() --记录时间

     SET @beginRow = (@pageNum-1) * @pageSize    + 1
     SET @endRow = @pageNum * @pageSize
     SET @tempLimit = 'rows BETWEEN ' + CAST(@beginRow AS VARCHAR) +' AND '+CAST(@endRow AS VARCHAR)
     
     --输出参数为总记录数
     SET @tempCount = 'SELECT @recordTotal = COUNT(*) FROM (SELECT '+@keyName+' FROM '+@tableName+' WHERE '+@whereString+') AS my_temp'
     EXECUTE sp_executesql @tempCount,N'@recordTotal INT OUTPUT',@recordTotal OUTPUT
       
     --主查询返回结果集
     SET @tempMain = 'SELECT * FROM (SELECT ROW_NUMBER() OVER (order by '+@orderString+') AS rows ,'+@fieldName+' FROM '+@tableName+' WHERE '+@whereString+') AS main_temp WHERE '+@tempLimit
     
     --PRINT @tempMain
     EXECUTE (@tempMain)
     --select datediff(ms,@timediff,getdate()) as 耗时 
     
     set nocount off
END

 #region SQL数据库分页
        /// <summary>
        /// 分页查询某个表或者视图,并查询出总条数
        /// </summary>
        /// <param name="tableName">表或视图名称</param>
        /// <param name="FieldName">--查询字段</param>
        /// <param name="KeyName">索引字段</param>
        /// <param name="pageSize">每页记录数</param>
        /// <param name="pageNum">当前页 默认20</param>
        /// <param name="orderString">排序条件</param>
        /// <param name="whereString">WHERE条件</param>
        /// <param name="recordTotal">输出记录总数</param>
        /// <returns></returns>
        public static DataSet GetPageDataFormTableOrView(string tableName, string FieldName, string KeyName, int pageSize, int pageNum,string orderString,string whereString, out int resultcount)
        {
            string spName = "usp_CommonViewPager";
            SqlParameter[] parms = new SqlParameter[] {
                new SqlParameter("@tableName",SqlDbType.VarChar),
                new SqlParameter("@fieldName",SqlDbType.NVarChar),
                new SqlParameter("@keyName",SqlDbType.VarChar),
                new SqlParameter("@pageSize",SqlDbType.Int),
                new SqlParameter("@pageNum",SqlDbType.Int),
                new SqlParameter("@orderString",SqlDbType.VarChar),
                new SqlParameter("@whereString",SqlDbType.VarChar),
                new SqlParameter("@recordTotal",SqlDbType.Int),
            };
            parms[0].Value = tableName;
            parms[1].Value = FieldName;
            parms[2].Value = KeyName;
            parms[3].Value = pageSize;
            parms[4].Value = pageNum;
            parms[5].Value = orderString;
            parms[6].Value = whereString;
            parms[7].Direction = ParameterDirection.Output ;
            DataSet ds = new DataSet();
            ds =ExecuteDataSetProcedures(spName, parms);
            resultcount = Convert.ToInt32(parms[7].Value);
            if (ds != null && ds.Tables.Count > 0)
            {
                return ds;
            }
            else
            {
                return null;
            }
        }
        #endregion