select a,b,null,null from table1 union select null,null,c,d from table2 union select null,null,null,null,e,f from table3.
aLl sElEcT null null null null. Re: [SQL] cast text as date.
select cast (2000 as type of quint) from rdb$database select cast (2000 as int) from rdb$database. If TYPE OF is used with a (VAR)CHAR type, its character.
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A field with a NULL value is a field with no value. If a field in a table is optional, it is possible to insert a new record or update a record without adding a value to this
999999.9+union+all+select+%27R3DM0V3_hvj_injection',null
After looking through the whole database as well as the files on the site, I'm nearly 99% positive nothing was harmed, deleted or changed. Which makes me glad to know that I'm knowledgeable enough in my php to know how to prevent these things.
The null character (also null terminator or null byte), abbreviated NUL or NULL, is a control character with the value zero. It is present in many character sets, including ISO/IEC 646 (or ASCII)...
This special treatment of NULL is why, in the previous section, it was necessary to determine which animals are no longer alive using death IS NOT NULL instead of death <> NULL. Two NULL values are regarded as equal in a GROUP BY. When doing an ORDER BY, NULL values are presented first if...