修改现有查询

Question

我有两张桌子

create table jobs (
    id varchar unique primary key,
    account_email varchar not null,
    active boolean not null default true,
    enabled boolean not null default false,

    name varchar (50) not null,
    ...
);

create table job_tags (
    job_id varchar not null,
    tag varchar(50) not null,

    foreign key (job_id) references jobs(id) on delete cascade,
    unique (job_id, tag)
);

这个 sql 查询得到工作SELECT * FROM jobs INNER JOIN job_categories ON (jobs.category_id=job_categories.category_id) WHERE jobs.id=$1

由于我没有什么经验，我再执行一次查询以加载 job_tags。是否可以只创建一个？我使用 golang sqlx，谢谢

Answer 1

是的，你几乎明白了：

SELECT * FROM jobs
INNER JOIN job_categories ON (jobs.category_id=job_categories.category_id) 
INNER JOIN job_tags ON (jobs.id = job_tags.job_id)
WHERE jobs.id=$1