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MySQL order by before group by
...hor is to use a subquery to return the max date and then join that to your table on both the post_author and the max date.
The solution should be:
SELECT p1.*
FROM wp_posts p1
INNER JOIN
(
SELECT max(post_date) MaxPostDate, post_author
FROM wp_posts
WHERE post_status='publish'
...
Why do we not have a virtual constructor in C++?
...uctor ends.In order for the constructor to be dispatched using the virtual table , there has to be an existing object with a pointer to the virtual table , but how can a pointer to the virtual table exist if the object still doesn't exist? :)
Logic reason
You use the virtual keyword when you want ...
Entity Framework Refresh context?
...ntities based on views from my Database and when I made an update over one table Entity that has navigation properties to views, the entity is update but the view don't refresh accord the new updates...just want to get again from the Db the data.
Thanks!
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Change Default Scrolling Behavior of UITableView Section Header
I have a UITableView with two sections. It is a simple table view. I am using viewForHeaderInSection to create custom views for these headers. So far, so good.
...
Delete sql rows where IDs do not have a match from another table
I'm trying to delete orphan entries in a mysql table.
3 Answers
3
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How to install mongoDB on windows?
...st imagine an SQL server or Oracle Db with entirely different rows in same table? Is it possible in our relational DB table? This is how mongo works. I will show you how we can do that…
First I will show you how the data will look in a relational DB.
For example consider an Employee table and a S...
How to list the properties of a JavaScript object?
...es, ES5 provides Object.getOwnPropertyNames (see its support in my compat. table — kangax.github.com/es5-compat-table)
– kangax
Oct 27 '10 at 2:43
2
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SQL how to increase or decrease one for a int column in one command
I have an Orders table which has a Quantity column. During check in or check out, we need to update that Quantity column by one. Is there a way to do this in one action or we have to get the existing value and then add or minus one on top of it?
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How to add a footer to a UITableView in Storyboard
...
You can just drag a view to the bottom area of the tableView. You'll see in the hierarchy that it will be a subview of the tableview. You can then drag subviews such as labels and buttons there, adjust the height, etc.
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Finding most changed files in Git
...;1
A5: TYPE >> =IF(D2=TRUE,MID(A2,C2+1,18),"")
create pivot table
values: Type
Filter: isFilename = true
Rows : Type
Sub : FileName
click [Count Of TYPE] -> Sort -> Sort Largest To Smallest
shar...