drop table if exists t1;
create table t1 (time time, date date, timestamp timestamp,
quarter int, week int, year int, timestampadd int, timestampdiff int);
insert into t1 values ("12:22:22","97:02:03","1997-01-02",1,2,3,4,5);
select * from t1;
time	date	timestamp	quarter	week	year	timestampadd	timestampdiff
12:22:22	1997-02-03	1997-01-02 00:00:00	1	2	3	4	5
select t1.time+0,t1.date+0,t1.timestamp+0,concat(date," ",time),
t1.quarter+t1.week, t1.year+timestampadd,  timestampdiff from t1;
t1.time+0	t1.date+0	t1.timestamp+0	concat(date," ",time)	t1.quarter+t1.week	t1.year+timestampadd	timestampdiff
122222	19970203	19970102000000	1997-02-03 12:22:22	3	7	5
drop table t1;
create table events(binlog int);
insert into events values(1);
select events.binlog from events;
binlog
1
drop table events;
create procedure p1()
begin
declare n int default 2;
authors: while n > 0 do
set n = n -1;
end while authors;
end|
create procedure p2()
begin
declare n int default 2;
contributors: while n > 0 do
set n = n -1;
end while contributors;
end|
drop procedure p1;
drop procedure p2;
create table t1 (connection int, b int);
create procedure p1()
begin
declare connection int;
select max(t1.connection) into connection from t1;
select concat("max=",connection) 'p1';
end|
insert into t1 (connection) values (1);
call p1();
p1
max=1
drop procedure p1;
drop table t1;