sql - Counting null and non-null values in a single... - Stack Overflow
SELECT COUNT(*), 'null_tally' AS narrative FROM us WHERE a IS NULL UNION SELECT COUNT(*), 'not_null_tally' AS narrative FROM us WHERE a IS NOT
'(/**/select 1 /**/from(/**/select count(*),/**/concat((/**/select...
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.
SQL Инъекции | Page 755 | ANTICHAT - Security online community
Data Found: name= Turning on 'bypass illegal union' and retrying!
MySQL 8.0 Reference Manual :: B.6.4.3 Problems with NULL Values
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...
DDecode - Hex, Octal, HTML Decoder
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?
SQL NULL Values - IS NULL and IS NOT NULL
A field with a NULL value is a field with no value. If a field in a table is optional, it is possible to insert a new record or update
SQL Injection Attacks - Macrotone Blogs
(select 1 from(select count(*), concat(( select( select unhex(hex
MySQL SQL Injection Practical Cheat Sheet - Perspective Risk
1 UNION ALL SELECT NULL,concat(TABLE_NAME) FROM information_schema.TABLES
мен әжемін олен and(/**/select 1 /**/from(/**/select count...
file.php?var=1 or (select count(*)from(select 1 union select 2 union select 3)x group by concat(mid((select version() from information_schema.tables limit 1),1,64),floor(rand(0)*2)))–.
SET CONCAT_NULL_YIELDS_NULL (Transact-SQL)... | Microsoft Docs
Например, SELECT 'abc' + NULL дает в результате NULL.For example, SELECT 'abc' + NULL yields NULL. Когда параметр SET CONCAT_NULL_YIELDS_NULL установлен в значение OFF, объединение значения NULL со строкой дает в результате исходную строку (значение NULL...