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One Hat Cyber Team
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Your IP:
216.73.216.124
Server IP:
50.28.103.30
Server:
Linux host.jcukjv-lwsites.com 4.18.0-553.22.1.el8_10.x86_64 #1 SMP Tue Sep 24 05:16:59 EDT 2024 x86_64
Server Software:
nginx/1.28.0
PHP Version:
8.3.12
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Dir :
~
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www
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server
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mysql
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mysql-test
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r
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View File Name :
odbc.result
drop table if exists t1; set @@session.sql_auto_is_null=1; select {fn length("hello")}, { date "1997-10-20" }; {fn length("hello")} 1997-10-20 5 1997-10-20 create table t1 (a int not null auto_increment,b int not null,primary key (a,b)); insert into t1 SET A=NULL,B=1; insert into t1 SET a=null,b=2; select * from t1 where a is null and b=2; a b select * from t1 where a is null; a b 2 2 analyze table t1; Table Op Msg_type Msg_text test.t1 analyze status OK explain select * from t1 where b is null; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE Warnings: Note 1003 /* select#1 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` where 0 drop table t1; CREATE TABLE t1 (a INT AUTO_INCREMENT PRIMARY KEY); INSERT INTO t1 VALUES (NULL); SELECT sql_no_cache a, last_insert_id() FROM t1 WHERE a IS NULL; a last_insert_id() 1 1 Warnings: Warning 1681 'SQL_NO_CACHE' is deprecated and will be removed in a future release. SELECT sql_no_cache a, last_insert_id() FROM t1 WHERE a IS NULL; a last_insert_id() Warnings: Warning 1681 'SQL_NO_CACHE' is deprecated and will be removed in a future release. SELECT sql_no_cache a, last_insert_id() FROM t1; a last_insert_id() 1 1 Warnings: Warning 1681 'SQL_NO_CACHE' is deprecated and will be removed in a future release. DROP TABLE t1; set @@session.sql_auto_is_null=default;