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Selecting constants without referring to a table is perfectly legal in an SQL statement: SELECT 1, 2, 3. The result set that the latter returns is a single row containing the values.
select a,b,null,null from table1 union select null,null,c,d from table2 union select null,null,null
Union select null, null, null, null, null, null, null from information_schema.tables. for a small database containing three tables. this instruction is used in sql injection I tried it and it worked but I didn't really know how it works can somebody help me...
else (select 1 union select 2)end) С выводом script.php
11 times table drill worksheet – Download.
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Select2 gives you a customizable select box with support for searching, tagging, remote data sets, infinite scrolling, and many other highly used options.