Following query runs well in MySQL 5.x SELECT m_area.id, m_area.cn_areaName, m_area.de_areaN开发者_如何转开发ame,
I\'m writing sql query to get post and only last comment of this post(if exists). But I can\'t find a way to limit only 1 row for right column in left join.
Let\'s say I have two Django models Person and Company as follows: - class Company(models.Model): name = models.CharField()
I have 2 tables : users : contains id and name friends : contains id1 and id2 Let\'s suppose I ha开发者_C百科ve this data in the users table :
I am trying to generate a simple list from a series of tables in a MySQL database. The SQL I am using is:
I\'m not that good in SQL and I\'ve come across a problem I don\'t know how to solve. I\'ve read and re-read parts of a book about SQL (O\'Reilly\'s Learning SQL) which I hoped would contain the infor
Situation: In my database I have a table called \'artists\' and \'tags\'. Each artist has a set of tags, saved in a linking table \'artisttags\'.
I have three tables Tasks with columns Taskid, Taskname TaskAllocations with columns Taskid, EmpNum TaskEntries with columns TaskId, EmpNum, WorkedDate, Hoursspent
This is a WinForms application. There is a many-to-many relationship between the rows in TABLEA and TABLEB. There is a record in TABLELINK for every row in TABLEA that is related to a row in TABLEB.
I have a problem. I want to create sql question select * from Firma left outer join FirmaAdres on FirmaAdres.Typ = 1 and FirmaAdres.FirmaID = Firma.ID
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