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mysql ??????? ???? ???? ??
???????? ???? ???? Mysql ??: 1. "USE ?????? ??;" ?? ???? ???? ???? ?? ??????? ???? ?????. 2. "DROP TABLE [IF EXISTS] <??? ?? 1> [ , <??? ?? 2>, <??? ?? 3>…];" ?? ??????? ?? ?? ??? ??? ???? ?????.
May 17, 2019 am 11:31 AM
mysql?? ??????? ???? ??
?? ??: 1. "win+r" ?? ???? "??" ?? ?? "cmd"? ??? ? Enter? ?? cmd ?? ??? ?????. 2. cmd ??? "mysql -u root"? ?????. -p" ??? ???? MySQL ??? ??????. 3. "DROP DATABASE IF EXISTS ?????? ??" ??? ???? ??? ??????? ?? ???? ???? ??????? ????? ?????. "IF EXISTS" ??? ?? ?????. ?? ? ??? ???? ?? ??????? ??? ? ???? ??? ??? ? ????.
Jun 16, 2022 pm 04:53 PM
MySQL?? ??????? ???? ??
??: "DROP DATABASE" ?? ???? ??? ??????? ??? ? ????. ???? ??? "DROP DATABASE [IF EXISTS] <?????? ??>;"???.
Jan 18, 2021 pm 03:51 PM
mysql?? ??????? ???? ??
mysql??? "DROP DATABASE" ?? ???? ??????? ??? ? ????. ???? ?? ??? "DROP DATABASE [IF EXISTS] ?????? ??"???. ???? ?? "IF EXISTS"? ?????? ?? ? ??? ???? ? ?????. ???? ????.
Jan 06, 2022 pm 04:22 PM
??????? ???? SQL ?? ??????
SQL ?? ??? ????. 1. ?????? ??, "?????? ?????? ?? ??" ? "??? ??? ?? ???" ? 2. ??? ??, "??? ??? ?? ??" ? 3. ??? ??, "??? ???? ??" where ??"?.
Jul 02, 2021 am 10:23 AM
mysql ???????? ?? ???? ???? ??? ??????
mysql? ???????? ?? ???? ???? ??: ?? ?? ???? ??? ?? "SELECT DISTINCT" ?? ???? ?? ???? ????? ????? ??? ???? INDEX ? PRIMAY KEY? ???? ????? ?? ???? ?????.
Sep 03, 2020 pm 01:18 PM
mysql navicat?? ??????? ???? ??
navicat mysql?? ??????? ???? ??: ?? ??? ??? ??? ?? ????? ??????? ??? ??? ???? ???? ??? ?????.
Aug 05, 2019 pm 03:40 PM
??????? ???? ??? ??????
??????? ???? ??? "DROP DATABASE [ IF EXISTS ] <?????? ??>"???. ??????? ???? ??? ???? ?? ??????? ???? ??????? ?? ???? ?????.
May 27, 2020 am 10:49 AM
mysql?? ??????? ???? ?? ???? ??
??????? ???? ?? ???? Mysql ??: LIMIT ????? ?? ?? ??, ??? [DELETE FROM syslogs WHERE status=1 ORDER BY statusid LIMIT 10000]???.
Sep 28, 2020 pm 01:16 PM
PHP?? ?????? ???? ???? ??
PHP?? ?????? ???? ???? ??: ?????? ???? [DELETE FROM table_name WHERE some_column = some_value] ?? ??? mysqli_query ??? ???? ??? ? ????.
Nov 05, 2020 am 10:32 AM
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