Mysql分页存储过程_MySQL

DROP PROCEDURE IF EXISTS pr_pager;CREATE PROCEDURE pr_pager( IN p_table_name VARCHAR(1024), IN p_fields VARCHAR(1024), IN p_page_size INT, IN p_page_now INT, IN p_order_string VARCHAR(128), IN p_where_string VARCHAR(1024), OUT p_page_count INT ) NOT DETERMINISTIC SQL SECURITY DEFINER COMMENT '分页存储过程' BEGIN DECLARE m_begin_row INT DEFAULT 0; DECLARE m_limit_string CHAR(); 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); PREPARE count_stmt FROM @COUNT_STRING; EXECUTE count_stmt; DEALLOCATE PREPARE count_stmt; SET p_page_count = CEILING((@ROWS_TOTAL*1.0)/p_page_size); PREPARE main_stmt FROM @MAIN_STRING; EXECUTE main_stmt; DEALLOCATE PREPARE main_stmt; END;--测试call pr_pager("person","id",4,2,"order by id desc","",@page_count);select @page_count as page_count;

 IN p_table_name VARCHAR(1024), --表名 IN p_fields VARCHAR(1024), --