LambdaQueryWrapper条件构造器方法对应Sql
setSqlSelect SELECT 查询字段 举例 where WHERE 语句,拼接 + WHERE 条件 and AND 语句,拼接 + AND 字段=值 andNew AND 语句,拼接 + AND (字段=值) or OR 语句,拼接 + OR 字段=值 .eq(" name “,” 木 子 “). or ( ). eq (” id ", 1 ) => name=“木子” or id=1 注意事项:主动调用or表示下一个方法不是and连接,不调用默认为使用and连接 orNew OR 语句,拼接 + OR (字段=值) eq 等于= .eq(“name”,“木子”) => name=“木子” allEq 基于 map 内容等于= ne 不等于<> gt 大于> ge 大于等于>= lt 小于< le 小于等于<= like 模糊查询 LIKE .like(“name”,“木子”) => name like ‘%木子%’ notLike NOT LIKE模糊查询 in IN 查询 .in(“age”,{1,2,3}) => age in (1,2,3) notIn NOT IN 查询 isNull NULL 值查询 isNotNull IS NOT NULL groupBy 分组 GROUP BY having HAVING 关键词 orderBy 排序 ORDER BY orderAsc Asc 排序 ORDER BY orderDesc DESC 排序 ORDER BY exists EXISTS 条件语句 notExists NOT EXISTS 条件语句 between BETWEEN 条件语句 .between (“age”,1,2) => age between 1 and 2 notBetween NOT BETWEEN 条件语句 addFilter 自由拼接 SQL last 拼接在最后,例如:last(“LIMIT 1”)
原创文章,作者:ItWorker,如若转载,请注明出处:https://blog.ytso.com/290663.html