multiple-tables

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Left Join 2 tables on 1 table

It must be pretty easy, but i can\'t think of any solution nor can I find an answer somewhere... I got the table \'users\'[详细]

2023-04-12 23:55 分类：问答
How to add entity to multiple tables?

I have 2 tables in my DB: Students and StudentsHistory. The idea is that every change in the Students table must create a new record in the StudentsHistory table (e.g. when I edit a student, 2 operati[详细]

2023-04-08 20:51 分类：问答
BindingNavigator with multiple tables updating problem in Visual Studio 2010

I have 2 tables \'contract\' and \'customer\', they have fk relationship. I drag \'contact\' onto form then do so with \'customer\', both are details type. The data of 2 tables are sh开发者_如何学Cown[详细]

2023-04-05 06:23 分类：问答
mySQL query from two different tables with mutual conditional

Please help me to structure mysql query I have 2 tables, #_udjacomment AND #_content currently I have query:[详细]

2023-03-31 16:49 分类：问答
Delete referring to multiple table doesn't work on MYSQL

I\'m tryi开发者_如何学JAVAng to delete from a table, using join from other tables. My sql is the following:[详细]

2023-03-31 10:09 分类：问答
same query multiple tables mysql

I have 2 tables in mysql db T1 : registration T2 : multiple_email and I have a field email_id in both the tables. I want to run a query to see if a email is valid. So, I can run 2 queries as[详细]

2023-03-30 15:08 分类：问答
PHP MYSQL Query Multiple Tables Where the Second Table returns multiple rows

I\'m trying to query 2 tables where the first table will return 1 row and the second table will return multiple rows. So basically the first table with return text on a page and the second table will[详细]

2023-03-29 15:35 分类：问答
Need to use criteria from multiple tables to acquire data from multiple tables

I\'m having a bit of a hiccup regarding a particular SQL query.I need to join data from two tables, while also limiting the data (but not necessarily grabbing it) by means of a third table.The tables[详细]

2023-03-27 18:29 分类：问答
Database tables; spread them out, or null them together?

Quick question regarding database desi开发者_JAVA技巧gn; Given I\'m storing User data in a database, I can identify two (seemingly) separate forms of data associated with a user; account data, and pr[详细]

2023-03-22 11:26 分类：问答
Naming tables returned from Oracle

I\'m using the Oracle data libraries in .NET to get multiple tables returned from a Procedure (as multiple Out cursors). This data is being inserted into a DataSet. Th开发者_开发问答e problem I\'m hav[详细]

2023-03-21 21:08 分类：问答