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Find most frequent value in SQL column
...+1 for using standard SQL that will work in any database (whereas LIMIT is MySQL specific, TOP is SQL Server specific).
– Dylan Smith
Jul 20 '18 at 14:46
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How to store values from foreach loop into an array?
...bership AS gm LEFT JOIN users AS u ON gm.`idUser` = u.`idUser`";
$result = mysql_query($query);
while ($record = mysql_fetch_array($result)) { \
$items[] = $username;
}
?>
while is faster, but the last example is only a result of an observation. :)
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Create a temporary table in a SELECT statement without a separate CREATE TABLE
...STS table2 AS (SELECT * FROM table1)
From the manual found at http://dev.mysql.com/doc/refman/5.7/en/create-table.html
You can use the TEMPORARY keyword when creating a table. A TEMPORARY table is visible only to the current session, and is dropped automatically when the session is closed. Thi...
How to create a multi-tenant database with shared table structures?
Our software currently runs on MySQL. The data of all tenants is stored in the same schema. Since we are using Ruby on Rails we can easily determine which data belongs to which tenant. However there are some companies of course who fear that their data might be compromised, so we are evaluating othe...
Escaping ampersand character in SQL string
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Note that & doesn't need to be escaped in MySQL. Also MySQL doesn't have the function CHR().
– asmaier
Jun 18 at 11:24
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How to store decimal values in SQL Server?
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In MySQL DB decimal(4,2) allows entering only a total of 4 digits. As you see in decimal(4,2), it means you can enter a total of 4 digits out of which two digits are meant for keeping after the decimal point.
So, if you enter 1...
Multi-line strings in PHP
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You forgot if I have loops or MySQL while loops between. Thanks
– TheBlackBenzKid
Mar 16 '12 at 20:40
93
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How to map calculated properties with JPA and Hibernate
...ce this query of course becomes a subquery when the host object is loaded. MySQL did not like the inline select without parentheses.
– sorrymissjackson
Nov 20 '15 at 7:18
1
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Commenting code in Notepad++
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From dev.mysql.com - From a “-- ” sequence to the end of the line. In MySQL, the “-- ” (double-dash) comment style requires the second dash to be followed by at least one whitespace or control character (such as a space, tab, ...
What is the difference between a Docker image and a container?
...use boot2docker on Windows). Why do we create images for applications, say mysql? At this point, how is mysql even running? Don't I need to have a Linux image to run mysql on top of?
– Kenny Worden
Feb 17 '15 at 16:41
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