truncate.test

视频监控网络部分的协议ddns,的模块的实现代码,请大家大胆指正.

#
# Test of truncate
#
--disable_warnings
drop table if exists t1;
--enable_warnings

create table t1 (a integer, b integer,c1 CHAR(10));
insert into t1 (a) values (1),(2);
truncate table t1;
select count(*) from t1;
insert into t1 values(1,2,"test");
select count(*) from t1;
delete from t1;
select * from t1;
drop table t1;
# The following should fail
--error 1146
select count(*) from t1;
create temporary table t1 (n int);
insert into t1 values (1),(2),(3);
truncate table t1;
select * from t1;
drop table t1;
--error 1146
truncate non_existing_table;

#
# test autoincrement with TRUNCATE; verifying difference with DELETE
#

create table t1 (a integer auto_increment primary key);
insert into t1 (a) values (NULL),(NULL);
truncate table t1;
insert into t1 (a) values (NULL),(NULL);
SELECT * from t1;
delete from t1;
insert into t1 (a) values (NULL),(NULL);
SELECT * from t1;
drop table t1;

# Verifying that temp tables are handled the same way

create temporary table t1 (a integer auto_increment primary key);
insert into t1 (a) values (NULL),(NULL);
truncate table t1;
insert into t1 (a) values (NULL),(NULL);
SELECT * from t1;
delete from t1;
insert into t1 (a) values (NULL),(NULL);
SELECT * from t1;
drop table t1;

# End of 4.1 tests

# Test for Bug#5507 "TRUNCATE should work with views"
#
# when it'll be fixed, the error should become 1347
# (test.v1' is not BASE TABLE)
#

create table t1 (s1 int); 
insert into t1 (s1) values (1), (2), (3), (4), (5);
create view v1 as select * from t1;
--error 1146
truncate table v1;
drop view v1;
drop table t1;

# End of 5.0 tests