The Background I was trying to solve the fourth realistic mission in hackthissite.org, and couldn't figure out exactly what SQL I should inject into the URL to retrieve the list of emails.
CONCAT() returns NULL if any argument is NULL. Press CTRL+C to copy.
Example. SELECT City FROM Customers UNION SELECT City FROM Suppliers ORDER BY City
SELECT column_names FROM table_name WHERE column_name IS NOT 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...
...NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,concat
Пример: SELECT header, txt FROM news UNION ALL SELECT name, pass FROM members Это позволит
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I want to select all the records from T1 and T2, thus I am trying, "select id, content from T1 UNION select id , content from T2 ;" This returns ORA-00932: inconsistent datatypes. Is it not allowed to have union of clob ? How do I get all the records using a single Query ? Thanks, Rajesh.