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How to UPSERT (MERGE, INSERT … ON DUPLICATE UPDATE) in PostgreSQL?
...tly asked question here is how to do an upsert, which is what MySQL calls INSERT ... ON DUPLICATE UPDATE and the standard supports as part of the MERGE operation.
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How can I SELECT rows with MAX(Column value), DISTINCT by another column in SQL?
... All you need to do is select BOTH the home and its max date time, then join back to the topten table on BOTH fields:
SELECT tt.*
FROM topten tt
INNER JOIN
(SELECT home, MAX(datetime) AS MaxDateTime
FROM topten
GROUP BY home) groupedtt
ON tt.home = groupedtt.home
AND tt.datetime = gr...
Set “Homepage” in Asp.Net MVC
In asp.net MVC the "homepage" (ie the route that displays when hitting www.foo.com) is set to Home/Index .
8 Answers
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Check if table exists and if it doesn't exist, create it in SQL Server 2008
I am writing a Stored procedure in SQL Server 2008.
I need to check if a table exists in the database. If it doesn't then I need to create it.
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SQL Joins Vs SQL Subqueries (Performance)?
I wish to know if I have a join query something like this -
8 Answers
8
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How did Google manage to do this? Slide ActionBar in Android application
I really want to implement this (the side navigation) in an app of my own, does anyone know how Google managed to do this?
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How to retrieve inserted id after inserting row in SQLite using Python?
How to retrieve inserted id after inserting row in SQLite using Python? I have table like this:
2 Answers
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Get itunes link for app before submitting
I read in another post that you can submit the app without the binary but I based on what I have seen this is no longer possible. It seems you cannot submit without the binary and the binary is submitted through the application loader. Is there any other known way to get the itunes/app store link to...
How do I delete a fixed number of rows with sorting in PostgreSQL?
I'm trying to port some old MySQL queries to PostgreSQL, but I'm having trouble with this one:
6 Answers
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selecting unique values from a column
I have a MySQL table which contains the following type of information:
9 Answers
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