drop table if exists t1, t2;
SET SQL_WARNINGS=1;
create table t1 (a int);
create table t1 (a int);
ERROR 42S01: Table 't1' already exists
show count(*) errors;
@@session.error_count
1
show errors;
Level	Code	Message
Error	1050	Table 't1' already exists
show warnings;
Level	Code	Message
Error	1050	Table 't1' already exists
create table t2(a int) default charset qwerty;
ERROR 42000: Unknown character set: 'qwerty'
show count(*) errors;
@@session.error_count
1
show errors;
Level	Code	Message
Error	1115	Unknown character set: 'qwerty'
create table t (i);
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ')' at line 1
show count(*) errors;
@@session.error_count
1
show errors;
Level	Code	Message
Error	1064	You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ')' at line 1
insert into t1 values (1);
insert into t1 values ("hej");
Warnings:
Warning	1265	Data truncated for column 'a' at row 1
insert into t1 values ("hej"),("då");
Warnings:
Warning	1265	Data truncated for column 'a' at row 1
Warning	1265	Data truncated for column 'a' at row 2
set SQL_WARNINGS=1;
insert into t1 values ("hej");
Warnings:
Warning	1265	Data truncated for column 'a' at row 1
insert into t1 values ("hej"),("då");
Warnings:
Warning	1265	Data truncated for column 'a' at row 1
Warning	1265	Data truncated for column 'a' at row 2
drop table t1;
set SQL_WARNINGS=0;
drop temporary table if exists not_exists;
Warnings:
Note	1051	Unknown table 'not_exists'
drop table if exists not_exists_table;
Warnings:
Note	1051	Unknown table 'not_exists_table'
show warnings limit 1;
Level	Code	Message
Note	1051	Unknown table 'not_exists_table'
drop database if exists not_exists_db;
Warnings:
Note	1008	Can't drop database 'not_exists_db'; database doesn't exist
show count(*) warnings;
@@session.warning_count
1
create table t1(id int);
create table if not exists t1(id int);
Warnings:
Note	1050	Table 't1' already exists
select @@warning_count;
@@warning_count
1
drop table t1;
create table t1(a tinyint, b int not null, c date, d char(5));
load data infile '../../std_data/warnings_loaddata.dat' into table t1 fields terminated by ',';
Warnings:
Warning	1263	Data truncated; NULL supplied to NOT NULL column 'b' at row 2
Warning	1265	Data truncated for column 'd' at row 3
Warning	1265	Data truncated for column 'c' at row 4
Warning	1261	Row 5 doesn't contain data for all columns
Warning	1265	Data truncated for column 'b' at row 6
Warning	1262	Row 7 was truncated; it contained more data than there were input columns
Warning	1264	Data truncated; out of range for column 'a' at row 8
select @@warning_count;
@@warning_count
7
drop table t1;
create table t1(a tinyint NOT NULL, b tinyint unsigned, c char(5));
insert into t1 values(NULL,100,'mysql'),(10,-1,'mysql ab'),(500,256,'open source'),(20,NULL,'test');
Warnings:
Warning	1263	Data truncated; NULL supplied to NOT NULL column 'a' at row 1
Warning	1264	Data truncated; out of range for column 'b' at row 2
Warning	1265	Data truncated for column 'c' at row 2
Warning	1264	Data truncated; out of range for column 'a' at row 3
Warning	1264	Data truncated; out of range for column 'b' at row 3
Warning	1265	Data truncated for column 'c' at row 3
alter table t1 modify c char(4);
Warnings:
Warning	1265	Data truncated for column 'c' at row 1
Warning	1265	Data truncated for column 'c' at row 2
alter table t1 add d char(2);
update t1 set a=NULL where a=10;
Warnings:
Warning	1263	Data truncated; NULL supplied to NOT NULL column 'a' at row 2
update t1 set c='mysql ab' where c='test';
Warnings:
Warning	1265	Data truncated for column 'c' at row 4
update t1 set d=c;
Warnings:
Warning	1265	Data truncated for column 'd' at row 1
Warning	1265	Data truncated for column 'd' at row 2
Warning	1265	Data truncated for column 'd' at row 3
Warning	1265	Data truncated for column 'd' at row 4
create table t2(a tinyint NOT NULL, b char(3));
insert into t2 select b,c from t1;
Warnings:
Warning	1265	Data truncated for column 'b' at row 1
Warning	1265	Data truncated for column 'b' at row 2
Warning	1265	Data truncated for column 'b' at row 3
Warning	1263	Data truncated; NULL supplied to NOT NULL column 'a' at row 4
Warning	1265	Data truncated for column 'b' at row 4
insert into t2(b) values('mysqlab');
Warnings:
Warning	1265	Data truncated for column 'b' at row 1
set sql_warnings=1;
insert into t2(b) values('mysqlab');
Warnings:
Warning	1265	Data truncated for column 'b' at row 1
set sql_warnings=0;
drop table t1, t2;
create table t1(a char(10));
alter table t1 add b char;
set max_error_count=10;
update t1 set b=a;
Warnings:
Warning	1265	Data truncated for column 'b' at row 1
Warning	1265	Data truncated for column 'b' at row 2
Warning	1265	Data truncated for column 'b' at row 3
Warning	1265	Data truncated for column 'b' at row 4
Warning	1265	Data truncated for column 'b' at row 5
Warning	1265	Data truncated for column 'b' at row 6
Warning	1265	Data truncated for column 'b' at row 7
Warning	1265	Data truncated for column 'b' at row 8
Warning	1265	Data truncated for column 'b' at row 9
Warning	1265	Data truncated for column 'b' at row 10
select @@warning_count;
@@warning_count
50
set max_error_count=0;
show variables like 'max_error_count';
Variable_name	Value
max_error_count	0
update t1 set b='hi';
Warnings:
select @@warning_count;
@@warning_count
50
show warnings;
Level	Code	Message
set max_error_count=65535;
show variables like 'max_error_count';
Variable_name	Value
max_error_count	65535
set max_error_count=10;
show variables like 'max_error_count';
Variable_name	Value
max_error_count	10
drop table t1;
create table t1 (id int) engine=isam;
Warnings:
Warning	1266	Using storage engine MyISAM for table 't1'
alter table t1 engine=isam;
Warnings:
Warning	1266	Using storage engine MyISAM for table 't1'
drop table t1;
create table t1 (id int) type=heap;
Warnings:
Warning	1287	'TYPE=storage_engine' is deprecated; use 'ENGINE=storage_engine' instead
alter table t1 type=myisam;
Warnings:
Warning	1287	'TYPE=storage_engine' is deprecated; use 'ENGINE=storage_engine' instead
drop table t1;
set table_type=MYISAM;
Warnings:
Warning	1287	'table_type' is deprecated; use 'storage_engine' instead
create table t1 (a int);
insert into t1 (a) values (1), (2), (3), (4), (5), (6), (7), (8), (9), (10);
update t1 set a='abc';
Warnings:
Warning	1265	Data truncated for column 'a' at row 1
Warning	1265	Data truncated for column 'a' at row 2
Warning	1265	Data truncated for column 'a' at row 3
Warning	1265	Data truncated for column 'a' at row 4
Warning	1265	Data truncated for column 'a' at row 5
Warning	1265	Data truncated for column 'a' at row 6
Warning	1265	Data truncated for column 'a' at row 7
Warning	1265	Data truncated for column 'a' at row 8
Warning	1265	Data truncated for column 'a' at row 9
Warning	1265	Data truncated for column 'a' at row 10
show warnings limit 2, 1;
Level	Code	Message
Warning	1265	Data truncated for column 'a' at row 3
show warnings limit 0, 10;
Level	Code	Message
Warning	1265	Data truncated for column 'a' at row 1
Warning	1265	Data truncated for column 'a' at row 2
Warning	1265	Data truncated for column 'a' at row 3
Warning	1265	Data truncated for column 'a' at row 4
Warning	1265	Data truncated for column 'a' at row 5
Warning	1265	Data truncated for column 'a' at row 6
Warning	1265	Data truncated for column 'a' at row 7
Warning	1265	Data truncated for column 'a' at row 8
Warning	1265	Data truncated for column 'a' at row 9
Warning	1265	Data truncated for column 'a' at row 10
show warnings limit 9, 1;
Level	Code	Message
Warning	1265	Data truncated for column 'a' at row 10
show warnings limit 10, 1;
Level	Code	Message
show warnings limit 9, 2;
Level	Code	Message
Warning	1265	Data truncated for column 'a' at row 10
show warnings limit 0, 0;
Level	Code	Message
show warnings limit 1;
Level	Code	Message
Warning	1265	Data truncated for column 'a' at row 1
show warnings limit 0;
Level	Code	Message
show warnings limit 1, 0;
Level	Code	Message
select * from t1 limit 0;
a
select * from t1 limit 1, 0;
a
select * from t1 limit 0, 0;
a
drop table t1;