Mysql必读mysql数据库动态创建表的实例分享

/*---建立所有指标信息的临时表---*/
drop table if exists INTERBANKBONDQUOTE_SClass;
create table INTERBANKBONDQUOTE_SClass (
     Name varchar(50) not null,
     id int Primary key,
     Parent int,
     Value varchar(50)
  );
insert into INTERBANKBONDQUOTE_SClass(Name,id,Value)values('最新成交', 0,''); 
insert into INTERBANKBONDQUOTE_SClass(Name,id,Value)values('买入信息', 1,''); 
insert into INTERBANKBONDQUOTE_SClass(Name,id,Value)values('买卖价差', 2,''); 
insert into INTERBANKBONDQUOTE_SClass(Name,id,Value)values('卖出信息', 3,''); 
insert into INTERBANKBONDQUOTE_SClass(Name,id,Parent,Value)values('中债最新估值', 4, -1,''); 
insert into INTERBANKBONDQUOTE_SClass(Name,id,Value)values('含权债行权指标', 5,''); 
insert into INTERBANKBONDQUOTE_SClass(Name,id,Value)values('基础指标', 6,''); 
insert into INTERBANKBONDQUOTE_SClass(Name,id,Value)values('双边报价笔数', 7,''); 
insert into INTERBANKBONDQUOTE_SClass(Name,id,Parent,Value)values('报价方', 8, 1, 'col4');
insert into INTERBANKBONDQUOTE_SClass(Name,id,Parent,Value)values('报价方会员号', 9, 1, 'col5');
insert into INTERBANKBONDQUOTE_SClass(Name,id,Parent,Value)values('报价时间', 10, 1, 'col6');
insert into INTERBANKBONDQUOTE_SClass(Name,id,Parent,Value)values('匿名', 11, 1, 'col7');

/*---建立显示数据表格题目的表---*/
drop table if exists INTERBANKBONDQUOTE_T;
create table INTERBANKBONDQUOTE_T as select concat(''',a.Name,',',b.Name,'' __TITLE__',b.Value);

DELIMITER $$
DROP PROCEDURE IF EXISTS `dzhappdb_bond`.`INTERBANKBONDQUOTE_TSP`$$
CREATE PROCEDURE INTERBANKBONDQUOTE_TSP ()
BEGIN
DECLARE objs1 TEXT;
DECLARE objs TEXT;
SELECT GROUP_CONCAT(col1) INTO objs1 FROM T;
SET objs  =CONCAT('CREATE TABLE Title AS SELECT ',objs1);
SET @sql_txt = objs;
PREPARE stmt FROM @sql_txt;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;
END$$
call INTERBANKBONDQUOTE_TSP;

MYSQL入门DROP PROCEDURE IF EXISTS INTERBANKBONDQUOTE_TSP_Title;
drop table if EXISTS Title;

MYSQL入门CREATE PROCEDURE INTERBANKBONDQUOTE_TSP_Title()
proc:begin
DECLARE add_sql LONGTEXT;
DECLARE insert_sql LONGTEXT;
DECLARE nhh_sql varchar(200);
DECLARE column_name varchar(100);
DECLARE column_value varchar(100);
DECLARE mycount int;
DECLARE len int;
DECLARE strlen int;
DECLARE cursor_Title CURSOR for select col1 from INTERBANKBONDQUOTE_T;

MYSQL入门create table Title(mid int);
insert into Title values (100);
select count(col1) into @mycount from INTERBANKBONDQUOTE_T;

MYSQL入门OPEN cursor_Title;
REPEAT
FETCH cursor_Title INTO nhh_sql;
begin
set @mycount=@mycount-1;
set @strlen=CHARACTER_LENGTH(nhh_sql);
set @len=INSTR(nhh_sql,' ');

MYSQL入门set @column_name=RIGHT(nhh_sql,@strlen-@len);
set @column_value=LEFT(nhh_sql,@len);
set @add_sql=CONCAT('ALTER table Title add COLUMN ',@column_name,' varchar(100)');
set @insert_sql=CONCAT('update Title set ',@column_name,'=',@column_value,' where mid=100');

MYSQL入门PREPARE stmt1 FROM @add_sql;
  EXECUTE stmt1;
PREPARE stmt2 FROM @insert_sql;
  EXECUTE stmt2;
DEALLOCATE PREPARE stmt1;
DEALLOCATE PREPARE stmt2;
end;
until @mycount<=0
END REPEAT;
CLOSE cursor_Title;
ALTER table Title drop column mid;
end proc;

MYSQL入门//挪用存储过程
call INTERBANKBONDQUOTE_TSP_Title;