- /*****************************************************
- MySQL分页存储过程
- 吴剑 2009-07-02
- *****************************************************/
- DROP PROCEDURE IF EXISTS pr_pager;
- CREATE PROCEDURE pr_pager(
- IN p_table_name VARCHAR(1024), /*表名*/
- IN p_fields VARCHAR(1024), /*查询字段*/
- IN p_page_size INT, /*每页记录数*/
- IN p_page_now INT, /*当前页*/
- IN p_order_string VARCHAR(128), /*排序条件(包含ORDER关键字,可为空)*/
- IN p_where_string VARCHAR(1024), /*WHERE条件(包含WHERE关键字,可为空)*/
- OUT p_out_rows INT /*输出记录总数*/
- )
- NOT DETERMINISTIC
- SQL SECURITY DEFINER
- COMMENT '分页存储过程'
- BEGIN
- /*定义变量*/
- DECLARE m_begin_row INT DEFAULT 0;
- DECLARE m_limit_string CHAR(64);
- /*构造语句*/
- SET m_begin_row = (p_page_now - 1) * p_page_size;
- SET m_limit_string = CONCAT(' LIMIT ', m_begin_row, ', ', p_page_size);
- SET @COUNT_STRING = CONCAT('SELECT COUNT(*) INTO @ROWS_TOTAL FROM ', p_table_name, ' ', p_where_string);
- SET @MAIN_STRING = CONCAT('SELECT ', p_fields, ' FROM ', p_table_name, ' ', p_where_string, ' ', p_order_string, m_limit_string);
- /*预处理*/
- PREPARE count_stmt FROM @COUNT_STRING;
- EXECUTE count_stmt;
- DEALLOCATE PREPARE count_stmt;
- SET p_out_rows = @ROWS_TOTAL;
- PREPARE main_stmt FROM @MAIN_STRING;
- EXECUTE main_stmt;
- DEALLOCATE PREPARE main_stmt;
- END;
1取记录调用:
- call pr_pager('表名', '*', 25, 1, '', '', @count_rows);
- call pr_pager('user', '*', 15, 2, '', 'where id>3', @count_rows);
- call pr_pager('user', '*', 15, 1, 'group by password order by id desc', '', @count_rows);
2调用1后再取条数调用:
- select @count_rows;
- select @MAIN_STRING //select sql
- select @COUNT_STRING //seelct count sql
支持多表级联 ,分组 :call pr_pager('job j left join enter_job ej on j.job_no=ej.job_no','j.*,ej.*','25','1','group byej.put_away_user order by ej.put_away_user desc','where j.job_table="enter"',@p_out_rows);
- <?php
- function dump_single_form41report($sys_report_id) {
- $this->dbConn->setFetchMode(DB_FETCHMODE_ASSOC);
- //SET @a=1;CALL dbpi_report.simpleproc(@a);SELECT @a;
- $sql = "CALL dbpi_temp.dumpSingleReportForm41($sys_report_id);";
- $result = $this->dbConn->query($sql);
- if (mysql_error()) {
- die (mysql_error().'<b>:</b> dump_single_form41report(...)['.__LINE__.'];<br>'.$sql);
- }
- return $result;
- }
- function initQueuePool($sys_report_id, $username){
- $this->dbConn->setFetchMode(DB_FETCHMODE_ASSOC);
- $this->checkPreviousThread($sys_report_id, $username);
- $temptablename = "_".$username."_".$sys_report_id;
- $sql = "SET @a=".$sys_report_id.";";
- $this->dbConn->query($sql);
- $sql = "SET @b='".DB_REPORT.".".$temptablename."';";
- $this->dbConn->query($sql);
- $sql = "SET @c='".DB_PREPRODUCT."';";
- $this->dbConn->query($sql);
- $sql = "CALL ".DB_REPORT.".fm41_simpleproc(@a,@b,@c);";
- $this->dbConn->query($sql);
- }
普通的查询,只返回一个结果集,而存储过程却返回至少两个结果集,其中一个就是存储过程的执行状态。我们必须要清除了这个执行状态以后,才可能再次调用另外一个存储过程 。
- <?php
- $rs=mysql_query("call pr_pager('change_monitor','*',10,1,'','',@p_out_rows)");
- while($rows=mysql_fetch_array($rs)){
- echo $rows[Schedule];
- }
- $query=mysql_query("select @p_out_rows");
- $v=mysql_fetch_array($query);
can't return a result set in the given context
需要php调用存储过程,返回一个结果集,发现很困难,找了半天,终于在老外的论坛上找到解决方案,这里本地化一下。
关键就是两点
1)define('CLIENT_MULTI_RESULTS', 131072);
2)$link = mysql_connect("127.0.0.1", "root", "",1,CLIENT_MULTI_RESULTS) or die("Could not connect: ".mysql_error());