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Laravel Migration Change to Make a Column Nullable
...n hang. I suppose the first rollback causes this. Causes hanging tests for MySQL as well as for SQLite.
– Thomas Praxl
Jul 19 '18 at 11:49
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List all sequences in a Postgres db 8.1 with SQL
I'm converting a db from postgres to mysql.
19 Answers
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Database Design for Tagging
...s-performance-tests/
Note that the conclusions there are very specific to MySQL, which (at least in 2005 at the time that was written) had very poor full text indexing characteristics.
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Linq to Objects: does GroupBy preserve order of elements?
...her fields than the group key, you saved my day with your comment. LINQ to MySql sorts the groups automagically by the group key! I've had to use ToList to bring the ordered query to local objects, then group over that. Thank you.
– Ivan Ferrer Villa
Dec 3 '19 ...
Migration: Cannot add foreign key constraint
... $table->engine = 'InnoDB'; is required to enforce foreign key at MySql level. The default laravel engine is MyIsam wich not support foreign keys !
– François Breton
Oct 9 '15 at 18:16
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Unioning two tables with different number of columns
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phpmyadmin logs out after 1440 secs
In my local development Ubuntu box I use MySQL and phpmyadmin to work with the database.
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On Duplicate Key Update same as insert
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There is a MySQL specific extension to SQL that may be what you want - REPLACE INTO
However it does not work quite the same as 'ON DUPLICATE UPDATE'
It deletes the old row that clashes with the new row and then inserts the new row. ...
Regular Expressions: Is there an AND operator?
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@Liam:. MySQL uses the POSIX ERE flavor, so no. It effectively sacrifices features in favor of performance, which seems reasonable to me. There's more information here.
– Alan Moore
Oct 15 '1...
Can I bind an array to an IN() condition?
...x in a table, and it is still not implemented yet - see this record in the MYSQL bug tracker. Thanks to @BillKarwin for the notice.
You can't use a string with comma inside as a value of the array for search. It is impossible to parse such string in the right way after implode since you use comma sy...