mysql將字符串轉換爲時間格式wheb從數據庫查詢

Question

將字段存儲爲varchar EX：06:30 AM。我需要從此字段中選擇一個查詢並將其轉換爲編號6.30。

Answer 1

使用TIME_FORMAT()字符串此

SELECT TIME_FORMAT(column_name, '%H.%i') AS time from table_name; 

編輯

SELECT TIME_FORMAT(STR_TO_DATE(column_name, '%h:%i %p'),'%H.%i') from table_name; 

Answer 2

轉換使用date

echo date('g.i',strtotime('06:30 AM')); 

輸出6.30

g => 12-hour format of an hour without leading zeros 1 through 12 
i => Minutes with leading zeros 00 to 59