mysql> create table test
-> (id int,
-> col int generated always as (id+1) stored comment "generated column"
-> );
Query OK, 0 rows affected (0.04 sec)
mysql> show create table test\G
*************************** 1. row ***************************
Table: test
Create Table: CREATE TABLE `test` (
`id` int(11) DEFAULT NULL,
`col` int(11) GENERATED ALWAYS AS ((`id` + 1)) STORED COMMENT 'generated column'
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4
1 row in set (0.00 sec)$selectTip = $pdo->query("SELECT * FROM `tips_rate` WHERE `tip_id` = ".$row[ id ]." " ); $selecttotal = mysqli_num_rows($selectTip); $rate = $pdo->query("SELEC...
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Table structure ...
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