Question

我正在尝试替换convert(string1,string2) to CAST(<String2> AS <String1>)的所有行为。

INPUT STRING如下：

Insert Into `Collaboration`.`SR_SearchResult`(SearchLinkID,PWUserID,SearchRank) 
        Select distinct lnk.SearchLinkID, Convert(varchar(10),@PWUserID) ,Convert(varchar(10),@rank) from `Collaboration`.`SR_SearchLink` lnk (nolock)
        inner join `Collaboration`.`SR_SearchTag` tg (nolock) on lnk.SearchLinkID = tg.SearchLinkID         
        WHERE @strSearch

期望的输出字符串：

Insert Into `Collaboration`.`SR_SearchResult`(SearchLinkID,PWUserID,SearchRank) 
        Select distinct lnk.SearchLinkID, CAST(@PWUserID AS varchar(10)) ,CAST(@rank AS varchar(10)) from `Collaboration`.`SR_SearchLink` lnk (nolock)
        inner join `Collaboration`.`SR_SearchTag` tg (nolock) on lnk.SearchLinkID = tg.SearchLinkID         
        WHERE @strSearch

我从我身边尝试了很多但却无法做到这一点。请帮帮我。

Answer 1

假设您使用的是Java，您可以使用以下正则表达式：convert\((.+?),(.+?)\)并像这样使用它（示例示例here）：

String str = "Insert Into Collaboration.SR_SearchResult(SearchLinkID,PWUserID,SearchRank) Select distinct lnk.SearchLinkID, Convert(varchar(10),@PWUserID) ,Convert(varchar(10),@rank) from Collaboration.SR_SearchLink lnk (nolock) inner join Collaboration.SR_SearchTag tg (nolock) on lnk.SearchLinkID = tg.SearchLinkID\n" +
"WHERE @strSearch";
        System.out.println(str.replaceAll("Convert\\((.+?),(.+?)\\)", "CAST($2 AS $1)"));

收率：

Insert Into Collaboration.SR_SearchResult(SearchLinkID,PWUserID,SearchRank) Select distinct lnk.SearchLinkID, CAST(@PWUserID AS varchar(10)) ,CAST(@rank AS varchar(10)) from Collaboration.SR_SearchLink lnk (nolock) inner join Collaboration.SR_SearchTag tg (nolock) on lnk.SearchLinkID = tg.SearchLinkID
WHERE @strSearch

Answer 2

通过sed。

$ sed 's/\bConvert(\([^,]*\),\([^)]*\))/CAST(\2 AS \1)/gi' file
Insert Into Collaboration.SR_SearchResult(SearchLinkID,PWUserID,SearchRank) Select distinct lnk.SearchLinkID, CAST(@PWUserID AS varchar(10)) ,CAST(@rank AS varchar(10)) from Collaboration.SR_SearchLink lnk (nolock) inner join Collaboration.SR_SearchTag tg (nolock) on lnk.SearchLinkID = tg.SearchLinkID
WHERE @strSearch

要保存所做的更改，您需要添加-i参数，例如sed -i 's//gi'。 i修饰符有助于执行不区分大小写的匹配。

Answer 3

我认为你在寻找的是：

sed 's/Convert(\(.*\),\(.*\))/CAST(\2 AS \1)/g'

使用Regex替换字符串

3 个答案: