存储过程--添加索引、删除索引

 

/*存在则删除存储过程*/
drop procedure if EXISTS add_index_while_procure;
/*查看存储过程*/
show procedure status;
show create procedure add_index_while_procure;

 

 1 delimiter $$
 2 /*创建带参存储过程 dbName库名称；tablePrefixName表名称前缀；minTableNumber表最小序号；maxTableNumber表最大序号;indexName索引名称；indexValue索引列*/
 3 create PROCEDURE add_index_while_procure(IN dbPrefixName VARCHAR(50),IN tablePrefixName VARCHAR(50),IN minTableNumber INT,IN maxTableNumber INT,IN indexName varchar(50),IN indexValue varchar(200))
 4 BEGIN
 5 declare table_name_number int;
 6 
 7 set table_name_number=minTableNumber;
 8 while(table_name_number<=maxTableNumber) DO 
 9 /*添加索引语句*/ 
10 set @STMT :=CONCAT("alter table ",dbPrefixName,".",tablePrefixName,table_name_number," ADD index " ,indexName," ",indexValue,";");
11 /*输出执行语句*/ 
12 select @STMT;
13 prepare STMT FROM @STMT;
14 EXECUTE STMT; 
15 
16 set table_name_number=table_name_number+1;
17 end while;
18 END 
19 $$
20 delimiter;

新建存储过程：给库.表的字段添加索引