我在表格中有很多列。我想替换查询中的所有内容：
select count(distinct a), count(distinct b), count(distinct c), count(distinct d) from table_name;
以类似的方式反映别名：
select count(distinct a) as a, count(distinct b) as b, count(distinct c) as c, count(distinct d) as d from table_name;
答案 0 :(得分：0)
试试这个：
s/\vdistinct\s(.{1})\)/distinct \1) as \1/g
你必须在开头使用\v来使用群组。
答案 1 :(得分：0)
我在vim中试过这个：
new Vue({
el: '#app',
data: {
showModal: false,
book: {
name: "Test",
description: "",
photo: ""
}
}
ready: () ->
this.getBookData()
console.log (this.book)
methods: {
getBookData: () ->
self = $(this)
$.getJSON 'GGPK4A.json', (data) ->
self.book = data
}
})
替换匹配“distinct”的东西，跟随（第一组）非贪婪匹配的任何东西，然后a）“with”distinct（第一组））为（第一组）“
请注意，地址“1，$”选择文件中的所有行。编辑灵感来自Jerry Jeremiah。
答案 2 :(得分：0)
Using the ex commmand s
s/count(distinct \([[:alpha:]_][[:alpha:]_]*\))/& as \1/g
A more robust example using sed, only substituting lines starting with select.
!sed '/^select/s/count(distinct \([[:alpha:]_][[:alpha:]_]*\))/& as \1/g