I\'m writing a stored procedure containing SQL Select queries with some functions on some columns and a GROUP BY clause.
I\'m trying to get my head around with the group by command, basically I\'m trying to select all messages of a user, group them by subject then show t开发者_开发知识库hem - just like how face book doe
I have a scenario, which is seemingly simple on paper, but I\'m having trouble getting to work as desired in practice.
This question already has answers here: How to optimize MySQL query (group and order) (4 answers) Closed last year.
What would be the correct way to add DISTINCT and/or GROUPBY to ContentResolver-based queries? Right now I have to create custom URI for each special c开发者_如何学Goase.
I have a table with 6 columns: id, a, b, c, d, e. id is primary key. I am trying to retrieve distinct a, b, c, max(d) for that group, and e that is present in the same row as max(d) is (column \"id\"
I have two LINQ statements that I would like to make into one, but for the life of me I can\'t get it to work.
Consider the following simplified objects and relationships: public class Job{ int JobId; String name; String status;
I realize this is likely to be an easy one, but my SQL is basic at best. Lets say I have a table containing a list of orders, with item_id being one of the columns. I need to display the 3 least (or
I have a bunc开发者_如何学Pythonh of ID\'s. I can assign them once a day. I need to query my database, see if they\'re any ID\'s available to hand out (if I didn\'t hand out all of them in a 24 hour
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