Wa开发者_如何学编程rning: mysql_query() [function.mysql-query]: MySQL server has gone away in filename.php on line 201
I\'m really struggling with this query. I have 4 tables (http://oberto.co.nz/db-sql.png): Invoice_Payement, Invoice, Client and Calendar. I\'m trying to create a report by summing up the \'paid_amoun
For example, there are two tables: create table Table1 (id int, Name varchar (10)) create table Table2 (id int, Name varchar (10))
I am trying to ge开发者_高级运维t the number of page opens on a per day basis using the following query.
I have database with a table called sites (which has a few fields, including a site_ID field), and a set of tables for each site_ID entry from the sites table.开发者_JAVA技巧
i have a problem with joining three tables in mysql. lets say we have a table named posts which I keep my entries in it, i have a table named likes which i store user_id\'s and post_id\'s in and a th
I have the following MySQL structure (minimized a lot): CREATE TABLE `site_movies` ( `id` int(10), `title` varchar(90),
I\'m using Oracle 11gR2 and I am trying to write a query that returns address data from two tables, CUSTOMERS and LOCATIONS.A given customer may (or may not) have different locations, each with their
I\'m using PostgreSQL 8.4.6 with CentOS 5.5 and have a table of users: # select * from pref_users where id=\'DE2\';
I came across this interesting behavior. I see left-join is the way to go, but would still like to have this cleared. Is it a bug or behavior by-design? Any explanations?
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