sql-view

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speeding up mysql queries / mysql views in django

I use the following code to select popular news entries (by date) from the database: popular = Entry.objects.filter(type=\'A\', is_public=True).extra(select = {\'dpub\': \'date(dt_published)\'}).orde[详细]

2023-01-15 07:21 分类：问答
Query with priority

I have a query that I cannot get to work right. I have 3 tables; Person, PersonProgram and Category. Person: ID, ....[详细]

2023-01-13 00:06 分类：问答
Data from two tables into one view

Is it possible to grab data from two tables (that have the same fields) into one view.Basically, so the view sees the da开发者_运维知识库ta as if it was one table.Yes, using a UNION -[详细]

2023-01-07 06:52 分类：问答
Dynamic column names

Is it possible to create a view (not stored procedure) with dynamic column names based on another table?For example:[详细]

2023-01-06 10:49 分类：问答
View or User Defined Function?

I have a scenario where I combine two tables into one (using UNION) and also JOIN data from some other tables.[详细]

2023-01-05 19:17 分类：问答
SELECT statement for a VIEW in MySQL not returning all the wanted rows

I need help with my MySQL query: CREATE OR REPLACE DEFINER = CURRENT_USER VIEW users_phpscheduleit AS SELECT[详细]

2023-01-04 04:02 分类：问答
MYSQL UPDATE with IN and Subquery

Hi i have tables like this : table entry : id|total_comments _____________________ 1|0 2|0 3|0 4|0 table comments :[详细]

2023-01-02 09:53 分类：问答
How do MySQL views work?

When I create a view I am basically making a new table that will automatically be transacted 开发者_如何学编程upon when data in one of the tables it joins changes; is that correct?[详细]

2022-12-30 21:30 分类：问答
SQL. Sorting by a field

I have created a simple view consisting of 3 tables in SQL. By right clicking and selecting Design, in the Object explorer table, i modified my custom view. I just added sortby asc in a field.[详细]

2022-12-26 21:41 分类：问答
Using views for access control in PostgreSQL

I have a schema of tables whose contents basically boil down to: A set of users A set of object groups An access control list (acl) indicating what users have access to what groups[详细]

2022-12-21 07:17 分类：问答