oracle 存储过程分页

            create
            or
            replace package pkg_query as
  type cur_query is ref cursor;
PROCEDURE prc_query
       (p_tableName        invarchar2,   --表名
        p_strWhere         invarchar2,   --查询条件
        p_orderColumn      invarchar2,   --排序的列
        p_orderStyle       invarchar2,   --排序方式
        p_curPage          in out Number,  --当前页
        p_pageSize         in out Number,  --每页显示记录条数
        p_totalRecords     out Number,     --总记录数
        p_totalPages       out Number,     --总页数
        v_cur              out pkg_query.cur_query);   --返回的结果集end pkg_query;

            create
            or
            replace package body pkg_query asPROCEDURE prc_query
       (p_tableName        invarchar2,   --表名
        p_strWhere         invarchar2,   --查询条件
        p_orderColumn      invarchar2,   --排序的列
        p_orderStyle       invarchar2,   --排序方式
        p_curPage          in out Number,  --当前页
        p_pageSize         in out Number,  --每页显示记录条数
        p_totalRecords     out Number,     --总记录数
        p_totalPages       out Number,     --总页数
        v_cur              out pkg_query.cur_query)   --返回的结果集IS
   v_sql VARCHAR2(1000) :=‘‘;      --sql语句
   v_startRecord Number(4);         --开始显示的记录条数
   v_endRecord Number(4);           --结束显示的记录条数BEGIN--记录中总记录条数
   v_sql :=‘SELECT COUNT(1) FROM ‘|| p_tableName ||‘ WHERE 1=1 ‘;
   IF p_strWhere ISNOTNULLor p_strWhere <>‘‘THEN
       v_sql := v_sql ||‘ and ‘|| p_strWhere;
   ENDIF;
   EXECUTE IMMEDIATE v_sql INTO p_totalRecords;

   --验证页面记录大小IF p_pageSize <0THEN
       p_pageSize :=0;
   ENDIF;

   --根据页大小计算总页数IF MOD(p_totalRecords,p_pageSize) =0THEN
       p_totalPages := p_totalRecords / p_pageSize;
   ELSE
       p_totalPages :=floor(p_totalRecords / p_pageSize) +1;
   ENDIF;

   --验证页号IF p_curPage <1THEN
       p_curPage :=1;
   ENDIF;
   IF p_curPage > p_totalPages THEN
       p_curPage := p_totalPages;
   ENDIF;

   --实现分页查询
   v_startRecord := (p_curPage -1) * p_pageSize +1;
   v_endRecord := p_curPage * p_pageSize;
   v_sql :=‘SELECT * FROM (SELECT a.*, rownum rn FROM ‘||‘(SELECT * FROM ‘|| p_tableName;
   IF p_strWhere ISNOTNULLor p_strWhere <>‘‘THEN
       v_sql := v_sql ||‘ WHERE 1=1 and ‘|| p_strWhere;
   ENDIF;
   IF p_orderColumn ISNOTNULLor p_orderColumn <>‘‘THEN
       v_sql := v_sql ||‘ ORDER BY ‘|| p_orderColumn ||‘‘|| p_orderStyle;
   ENDIF;
   v_sql := v_sql ||‘) a WHERE rownum <= ‘|| v_endRecord ||‘) WHERE rn >= ‘|| v_startRecord;
   DBMS_OUTPUT.put_line(v_sql);
   OPEN v_cur FOR v_sql;
END prc_query;
end pkg_query;

            private DataSet ExecuteProduce(string prodeceName, OracleParameter[] parms)
    {
        string connStr = ConfigurationManager.
            ConnectionStrings["RMS.DataAccess.Properties.Settings.ConnectionString"].ConnectionString;
        using (OracleConnection conn = new OracleConnection(connStr))
        {
            if (conn.State != ConnectionState.Open)
            {
                conn.Open();
            }
            OracleCommand cmd = new OracleCommand(prodeceName, conn);
            cmd.CommandType = CommandType.StoredProcedure;
            if (parms != null)
            {
                cmd.Parameters.AddRange(parms);
            }
            OracleDataAdapter oadp = new OracleDataAdapter(cmd);
            DataSet ds = new DataSet();
            oadp.Fill(ds);

            return ds;
        }
    }

    private DataSet Paging(string p_tableName, string p_strWhere, string p_orderColumn, string p_orderStyle, int p_curPage, int p_pageSize, refint p_totalRecords, refint p_totalPages)
    {
        string prodeceName = "pkg_query.prc_query";
        OracleParameter[] parms = new OracleParameter[]
        {
            new OracleParameter("p_tableName",OracleType.VarChar),
            new OracleParameter("p_strWhere",OracleType.VarChar),
            new OracleParameter("p_orderColumn",OracleType.VarChar),
            new OracleParameter("p_orderStyle",OracleType.VarChar),
            new OracleParameter("p_curPage",OracleType.Number),
            new OracleParameter("p_pageSize",OracleType.Number),
            new OracleParameter("p_totalRecords",OracleType.Number),
            new OracleParameter("p_totalPages",OracleType.Number),
            new OracleParameter("v_cur",OracleType.Cursor)
        };
        parms[4].Direction = ParameterDirection.InputOutput;
        parms[5].Direction = ParameterDirection.InputOutput;
        parms[6].Direction = ParameterDirection.Output;
        parms[7].Direction = ParameterDirection.Output;
        parms[8].Direction = ParameterDirection.Output;

        parms[0].Value = p_tableName;
        parms[1].Value = p_strWhere;
        parms[2].Value = p_orderColumn;
        parms[3].Value = p_orderStyle;
        parms[4].Value = p_curPage;
        parms[5].Value = p_pageSize;

        DataSet ds = ExecuteProduce(prodeceName, parms);
        p_totalRecords = Convert.ToInt32(parms[6].Value);
        p_totalPages = Convert.ToInt32(parms[7].Value);
        return ds;
    }