On 开发者_开发问答the project I am working on, I am stuck with the table structure from Hades.Two things to keep in mind:
I have 3 tablesTable1 (with 1020690 records), Table2(with 289425 records), Table 3(with 83692 records).I have something like this
Here is the code that I currently have: SELECT `A`.* FROM `A` LEFT JOIN `B` ON `A`.`A_id` = `B`.`value_1`
I\'m new to doctrine: I have a problem with the sorting of joined records. A sample. I\'ve got an Article model which is associated with a Source model in 1 <-> n. The source model has a property
Simplified table structure (the tables can\'t be merged at this time): TableA: dts_received (datetime) dts_completed (datetime)
Imagine the following model: class Parent(Model): ... class Child(Model) father = ForeignKey(Parent) ... Some parents have children, others do not (they\'re not parents in the real meaning, it\'s
I have this Query: SELECT p.ProductName, dt.MaxTimeStamp, p.Responsible FROM Product p LEFT JOIN (SELECT ProductID, MAX(TimeStamp) AS MaxTimeStamp
I have this query SELECT articles.*, users.username AS `user` FROM `articles` LEFT JOIN `users` ON articles.user_id = users.id
Why are the following queries different? I want a LEFT OUTER join, but need to filter the children with a condition. I thought these queries were essentially the same (just different syntax), but I ge
I am trying to do a left outer join on two tables, but I only want to return the results from the first table where the second table does not have a record (null).
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