A better example of how this may be used: > SELECT COUNT(*),CONCAT((SELECT CONCAT(user,password) FROM mysql.user LIMIT 1), > 0x20, FLOOR(RAND(0)*2)) x > FROM information_schema.tables GROUP BY x; ERROR 1062 (23000): Duplicate entry 'root...
First 10 Free. concat string with select count value - mysql.
insert (40 seconds) select (10 seconds). and then do them *again*, is it still 40 and 10 ? (I'm asking with a mind toward block cleanout).
SELECT is used to retrieve rows selected from one or more tables, and can include UNION statements and subqueries.
Login to your bWAPP and select vulnerability SQL Injection (Login Form/Hero). As stated in previous post, we need to do some
$sql = "select count(*) as totuur from studres where where dag>= curdate() AND logon='" . $lol . "'"; You have WHERE twice in "...from studres where where dag...", try what happens if you remove the extra where. This is one of the reasons why sql keywords should be written in CAPITAL letters.
SELECT * FROM Figures WHERE tPath='1' and(SeLeCt 1 FrOm(SeLeCt count(*),CoNcAt((SeLeCt(SeLeCt CoNcAt
COUNT(*) will include NULLS. COUNT(column_or_expression) won't. This means COUNT(any_non_null_column) will give the same as COUNT(*) of course because there are no NULL values to cause differences. Generally, COUNT(*) should be better because any index can be used...
data: lv_extractrows TYPE i. Select count(*) from (p_tabname) bypassing buffer. WHERE (cond_syntax).
I'm counting the number of reimbursement by year, month and by ATC (a categorical variable describing "classes" of medicines).