LIKE 运算符无法正常工作
LIKE operator isn't working properly
我正在尝试更新数据库中的一些值,我获取要更新的值的主要 table 具有以下结构:
http://api.football-data.org/alpha/soccerseasons/403/leagueTable
所以在更新查询中我执行这个语句:
UPDATE leaguetable SET matchDay = ?, position = ?, teamName = ?,
playedGames = ?, points = ?, goals = ?, goalsAgainst = ?,
goalDifference = ?, self = ?, soccerSeason = ?, team = ? WHERE
self LIKE 'http://api.football-data.org/alpha/soccerseasons/403/leagueTable'"
这个查询是正确的,但是当我在 PhpMyAdmin 的控制台中尝试它时它 returns 0 rows
因为值 self
有这个结构:
http://api.football-data.org/alpha/soccerseasons/403/leagueTable/?matchday=2
like 属性我做错了什么?
注意:我在名为$x
的变量中传递值http://api.football-data.org/alpha/soccerseasons/403/leagueTable
,在post中link是只是显示 link.
布局的示例
尝试在它后面加上 %(通配符):
UPDATE leaguetable SET matchDay = ?, position = ?, teamName = ?,
playedGames = ?, points = ?, goals = ?, goalsAgainst = ?,
goalDifference = ?, self = ?, soccerSeason = ?, team = ? WHERE self LIKE 'http://api.football-data.org/alpha/soccerseasons/403/leagueTable%'
您必须使用通配符才能获得输出
UPDATE leaguetable SET matchDay = ?, position = ?, teamName = ?,
playedGames = ?, points = ?, goals = ?, goalsAgainst = ?,
goalDifference = ?, self = ?, soccerSeason = ?, team = ? WHERE self LIKE 'http://api.football-data.org/alpha/soccerseasons/403/leagueTable%'"
您需要包含通配符 %
才能正常工作。
在此处阅读更多相关信息 MSDN LIKE
具体关于通配符%
'http://api.football-data.org/alpha/soccerseasons/403/leagueTable%'
查找所有以给定开头的 URL,包括所需的 /?matchday=2
.
在您的代码中:
UPDATE leaguetable
SET matchDay = ?, position = ?, teamName = ?, playedGames = ?, points = ?, goals = ?, goalsAgainst = ?, goalDifference = ?, self = ?, soccerSeason = ?, team = ?
WHERE self LIKE 'http://api.football-data.org/alpha/soccerseasons/403/leagueTable%'
我正在尝试更新数据库中的一些值,我获取要更新的值的主要 table 具有以下结构:
http://api.football-data.org/alpha/soccerseasons/403/leagueTable
所以在更新查询中我执行这个语句:
UPDATE leaguetable SET matchDay = ?, position = ?, teamName = ?,
playedGames = ?, points = ?, goals = ?, goalsAgainst = ?,
goalDifference = ?, self = ?, soccerSeason = ?, team = ? WHERE
self LIKE 'http://api.football-data.org/alpha/soccerseasons/403/leagueTable'"
这个查询是正确的,但是当我在 PhpMyAdmin 的控制台中尝试它时它 returns 0 rows
因为值 self
有这个结构:
http://api.football-data.org/alpha/soccerseasons/403/leagueTable/?matchday=2
like 属性我做错了什么?
注意:我在名为$x
的变量中传递值http://api.football-data.org/alpha/soccerseasons/403/leagueTable
,在post中link是只是显示 link.
尝试在它后面加上 %(通配符):
UPDATE leaguetable SET matchDay = ?, position = ?, teamName = ?,
playedGames = ?, points = ?, goals = ?, goalsAgainst = ?,
goalDifference = ?, self = ?, soccerSeason = ?, team = ? WHERE self LIKE 'http://api.football-data.org/alpha/soccerseasons/403/leagueTable%'
您必须使用通配符才能获得输出
UPDATE leaguetable SET matchDay = ?, position = ?, teamName = ?,
playedGames = ?, points = ?, goals = ?, goalsAgainst = ?,
goalDifference = ?, self = ?, soccerSeason = ?, team = ? WHERE self LIKE 'http://api.football-data.org/alpha/soccerseasons/403/leagueTable%'"
您需要包含通配符 %
才能正常工作。
在此处阅读更多相关信息 MSDN LIKE
具体关于通配符%
'http://api.football-data.org/alpha/soccerseasons/403/leagueTable%'
查找所有以给定开头的 URL,包括所需的 /?matchday=2
.
在您的代码中:
UPDATE leaguetable
SET matchDay = ?, position = ?, teamName = ?, playedGames = ?, points = ?, goals = ?, goalsAgainst = ?, goalDifference = ?, self = ?, soccerSeason = ?, team = ?
WHERE self LIKE 'http://api.football-data.org/alpha/soccerseasons/403/leagueTable%'