?? [m?d]
adj. ??; in
prep.... ???
n. .??? ??
mysql MID() ?? ???
??: ??? ???? ??? ???? ? ?????.
??: ??SELECT MID(column_name,start[,length]) FROM table_name
????:
| Parameters | Description |
| column_name | ?????. ??? ??? ?????. |
| ?? | ?????. ?? ??? ?????(?? ?? 1). |
| ?? | ????. ??? ?? ????. ???? MID() ??? ??? ???? ?????.? |