select hex(@a);
hex(@a)
NULL
select hex(@a);
hex(@a)
610063
set global init_connect="set @a=2;set @b=3";
select @a, @b;
@a	@b
2	3
set GLOBAL init_connect=DEFAULT;
select @a;
@a
NULL
set global init_connect="drop table if exists t1; create table t1(a char(10));\
insert into t1 values ('\0');insert into t1 values('abc')";
select hex(a) from t1;
hex(a)
00
616263
set GLOBAL init_connect="adsfsdfsdfs";
select @a;
ERROR 08S01: Aborted connection to db: 'test' user: 'user_1' host: 'localhost' (init_connect command failed)
select @a;
Got one of the listed errors
drop table t1;
End of 4.1 tests
create table t1 (x int);
insert into t1 values (3), (5), (7);
create table t2 (y int);
create user mysqltest1@localhost;
grant all privileges on test.* to mysqltest1@localhost;
set global init_connect="create procedure p1() select * from t1";
call p1();
x
3
5
7
drop procedure p1;
set global init_connect="create procedure p1(x int)\
begin\
  select count(*) from t1;\
  select * from t1;\
  set @x = x;
end";
call p1(42);
count(*)
3
x
3
5
7
select @x;
@x
42
set global init_connect="call p1(4711)";
select @x;
@x
4711
set global init_connect="drop procedure if exists p1";
call p1();
ERROR 42000: PROCEDURE test.p1 does not exist
create procedure p1(out sum int)
begin
declare n int default 0;
declare c cursor for select * from t1;
declare exit handler for not found
begin
close c;
set sum = n;
end;
open c;
loop
begin
declare x int;
fetch c into x;
if x > 3 then
set n = n + x;
end if;
end;
end loop;
end|
set global init_connect="call p1(@sum)";
select @sum;
@sum
12
drop procedure p1;
create procedure p1(tbl char(10), v int)
begin
set @s = concat('insert into ', tbl, ' values (?)');
set @v = v;
prepare stmt1 from @s;
execute stmt1 using @v;
deallocate prepare stmt1;
end|
set global init_connect="call p1('t1', 11)";
select * from t1;
x
3
5
7
11
drop procedure p1;
create function f1() returns int
begin
declare n int;
select count(*) into n from t1;
return n;
end|
set global init_connect="set @x = f1()";
select @x;
@x
4
set global init_connect="create view v1 as select f1()";
select * from v1;
f1()
4
set global init_connect="drop view v1";
select * from v1;
ERROR 42S02: Table 'test.v1' doesn't exist
drop function f1;
create trigger trg1
after insert on t2
for each row
insert into t1 values (new.y);
set global init_connect="insert into t2 values (13), (17), (19)";
select * from t1;
x
3
5
7
11
13
17
19
drop trigger trg1;
set global init_connect="set @a='a\\0c'";
revoke all privileges, grant option from mysqltest1@localhost;
drop user mysqltest1@localhost;
drop table t1, t2;
