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29 lines
1.2 KiB
Plaintext
29 lines
1.2 KiB
Plaintext
drop table if exists t1;
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select 0x41,0x41+0,0x41 | 0x7fffffffffffffff | 0,0xffffffffffffffff | 0 ;
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0x41 0x41+0 0x41 | 0x7fffffffffffffff | 0 0xffffffffffffffff | 0
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A 65 9223372036854775807 18446744073709551615
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select 0x31+1,concat(0x31)+1,-0xf;
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0x31+1 concat(0x31)+1 -0xf
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50 2 -15
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select x'31',X'ffff'+0;
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x'31' X'ffff'+0
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1 65535
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create table t1 (ID int(8) unsigned zerofill not null auto_increment,UNIQ bigint(21) unsigned zerofill not null,primary key (ID),unique (UNIQ) );
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insert into t1 set UNIQ=0x38afba1d73e6a18a;
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insert into t1 set UNIQ=123;
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explain extended select * from t1 where UNIQ=0x38afba1d73e6a18a;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 const UNIQ UNIQ 8 const 1
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Warnings:
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Note 1003 select `test`.`t1`.`ID` AS `ID`,`test`.`t1`.`UNIQ` AS `UNIQ` from `test`.`t1` where (`test`.`t1`.`UNIQ` = 4084688022709641610)
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drop table t1;
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select x'hello';
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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 'x'hello'' at line 1
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select 0xfg;
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ERROR 42S22: Unknown column '0xfg' in 'field list'
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create table t1 select 1 as x, 2 as xx;
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select x,xx from t1;
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x xx
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1 2
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drop table t1;
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