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MySQL/SQL: Group by date only on a Datetime column
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Are you sure the second one works? On SQL Server, this fails, and it fails for a good reason. I would expect it to fail anywhere else as well. Can you confirm that MySQL actually handles this query?
– Tomalak
Dec 14 '08 at 1...
Should programmers use SSIS, and if so, why? [closed]
...points where the abstractions break down. To figure out what each "Execute SQL Task" or "Foreach Loop" does, I have to double click the damned thing and browse through a tree of literal values and expressions, scattered across multiple tabs.
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SQL: How to get the count of each distinct value in a column?
I have a SQL table called "posts" that looks like this:
1 Answer
1
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How to use SQL Order By statement to sort results case insensitive?
I have a SQLite database that I am trying to sort by Alphabetical order. The problem is, SQLite doesn't seem to consider A=a during sorting, thus I get results like this:
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Difference between Select Unique and Select Distinct
I thought these were synonomous, but I wrote the following in Microsoft SQL:
5 Answers
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how do I query sql for a latest record date for each user
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When working with postgresql would this version be faster than using an IN (subquery) instead of the inner join?
– TheOne
Sep 7 '14 at 1:38
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Is it possible to roll back CREATE TABLE and ALTER TABLE statements in major SQL databases?
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http://wiki.postgresql.org/wiki/Transactional_DDL_in_PostgreSQL:_A_Competitive_Analysis provides an overview of this issue from PostgreSQL's perspective.
Is DDL transactional according to this document?
PostgreSQL - yes
MySQL - no; DDL cause...
How to write a foreach in SQL Server?
... an email or write to a file) rather than just shuffle stuff around within SQL, you need to use a cursor or something similar (not set logic). Likely people who come to SQL and try to do something RBAR they are coming to it as a programmer who needs it to do something useful like this.
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Using a Single Row configuration table in SQL Server database. Bad idea?
...le rows in the "special" single row settings table. I overcame this by (in SQL Server):
adding a new bit column with a default value of 0
creating a check constraint to ensure that this column has a value of 0
creating a unique constraint on the bit column
This means that only one row can exist in...
MySQL Insert into multiple tables? (Database normalization?)
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No, you can't insert into multiple tables in one MySQL command. You can however use transactions.
BEGIN;
INSERT INTO users (username, password)
VALUES('test', 'test');
INSERT INTO profiles (userid, bio, homepage)
VALUES(LAST_INSERT_ID(),'Hello world!', 'http://www.stack...