If that is correct: SELECT count(*) FROM us WHERE a IS NULL UNION ALL SELECT count(*) FROM us WHERE a IS NOT NULL.
gulmeli-ehvalat-and-select-1-from-select-count-concat-select...
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...
Count(*) of u0021_kinovdom.orders is 0 Can not get rows count, trying to get 10 rows Turning off 'bypass illegal union' and
This tool will attempt to revert any type of encoding (including Hex, html, Oct, etc). Very useful for webmasters trying to identify what a specific code is doing (from WordPress themes/plugins or Joomla templates). Seeing this on your site? Want to get it cleared?
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...
1 UNION ALL SELECT NULL,concat(0x28,column1,0x3a,column2,0x29) FROM database2.table1--. Error Based.
If I have this - tadd is the Address table: … Is there a way to exclude the apt_number if it doesn't exist? I was thinking of: … But it will return only those rows with apt_number...
SELECT column_names FROM table_name WHERE column_name IS NOT NULL