MySQL删除索引的存储过程

drop procedure if exists Pro_DelIndex

create procedure Pro_DelIndex(in TableName varchar(32), in IndexName varchar(32))

begin

declare selSql varchar(128);

declare delSql varchar(128);

declare cnt int(4) default 0;

set selSql = concat("select count(*) into @cnt from information_schema.statistics where table_name = '", TableName,"' and index_name = '", IndexName,"'");

set delSql = concat("drop index ", IndexName, " on ", TableName);

set @sql1 = selSql;

set @sql2 = delSql;

prepare selStmt from @sql1;

execute selStmt;

if @cnt > 0 then

prepare delStmt from @sql2;

execute delStmt;

end if;

end

show index from T_SC_UserManager

call Pro_DelIndex("T_SC_UserManager","IP")