AI代码解释 constusers=awaitthis.userRepository.createQueryBuilder('user').leftJoinAndSelect("user.photos","photo").where("user.name = :name",{name:"Timber"}).andWhere("photo.isRemoved = :isRemoved",{isRemoved:false}).getMany() 得到的数据结构如下所示,photo表的内容作为user的photos属性,这样...
subQuery() .select("COUNT(post.id)") .from(Post, "post") .where("post.userId = user.id"); return "user.id IN (" + subquery.getQuery() + ")"; } }); return users; } 注意:上述代码是一个示例,并不完整,因为它直接拼接了子查询的字符串,这在实际应用中可能会导致SQL注入等安全问题...
createQueryBuilder() .select("project.id", "id") .addSelect(subQuery => { return subQuery .select("student.name", "name") .from(Student, "student") .limit(1); }, "name") .from(Project, "project") .getMany(); Hidden field
SELECT ... FROM users user WHERE user.name = 'Timber'看到了吧,我们使用了在创建查询构建器时分配的user别名来使用 users 表。 一个查询构建器不限于一个别名,它们可以有多个别名。每个选择都可以有自己的别名,你可以选择多个有自己别名的表,你可以使用自己的别名连接多个表。你也可以使用这些别名来访问选择的...
subQuery() .where("connection.id = :id",{id:1}) .select(['connection.id','connection.user AS nick']) .getQuery(); const result = await userRepository.createQueryBuilder("user") .leftJoinAndSelect("user.permissions", '(' + query + ')') .where("user.nick = :nick") .andWhere(...
return subQuery // tslint:disable-next-line:max-line-length .select(`cast( jsonb_array_elements ( "user".learning_communities ) ->> 'id' AS uuid ) communityId`) .from(User, 'user'); }), 'c') .leftJoin('learning_community', 'lc', 'c.communityId = lc."id"') //这里拼left ...
('post') .leftJoinAndSelect('post.author', 'author') .addSelect(subQuery => { return subQuery .select('COUNT(*)', 'commentCount') .from('comments', 'comment') .where('comment.postId = post.id'); }, 'commentCount') .orderBy('commentCount', 'DESC') .limit(10) .getMany(); ...
.subQuery() .select('"tempTb".uuid') .leftJoin('user', 'u', 'u.id = "tempTb".uuid') .from(`( ${ userQb.getQuery()} )`, 'tempTb') .setParameters(userQb.getParameters()) .where(`"tempTb".otype = 'user' AND u.status = :status`, { status: AccountStatus.Active }) ...
limitSubquery Select and delete expired sessions in one query. Defaults to true, you can set false to make two queries, in case you want cleanupLimit but your MariaDB version doesn't support limit in a subquery. ttl Session time to live (expiration) in seconds. Defaults to session.maxAge...
ORM for TypeScript and JavaScript. Supports MySQL, PostgreSQL, MariaDB, SQLite, MS SQL Server, Oracle, SAP Hana, WebSQL databases. Works in NodeJS, Browser, Ionic, Cordova and Electron platforms. - typeorm/docs/select-query-builder.md at 09bce6fec1b6b47f