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MySQL Insert into multiple tables? (Database normalization?)
I tried searching a way to insert information in multiple tables in the same query, but found out it's impossible?
So I want to insert it by simply using multiple queries i.e;
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Liquibase lock - reasons?
...inst the database helps.
Or you can simply drop the DATABASECHANGELOGLOCK table, it will be recreated.
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Random record in ActiveRecord
I'm in need of getting a random record from a table via ActiveRecord. I've followed the example from Jamis Buck from 2006 .
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How do I ALTER a PostgreSQL table and make a column unique?
I have a table in PostgreSQL where the schema looks like this:
3 Answers
3
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Fit cell width to content
...question, but I'll take a stab at it. JSfiddle of the example.
HTML:
<table style="width: 100%;">
<tr>
<td class="block">this should stretch</td>
<td class="block">this should stretch</td>
<td class="block">this should be the content width</...
How to add “on delete cascade” constraints?
...ible to add ON DELETE CASCADES to the both foreign keys in the following table without dropping the latter?
3 Answers
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Table is marked as crashed and should be repaired
...an use the command (there must be ample space for the mysql files)
REPAIR TABLE `<table name>`;
for repairing individual tables
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Turning a Comma Separated string into individual rows
I have a SQL Table like this:
16 Answers
16
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Equivalent of varchar(max) in MySQL?
...are a varchar of the maximum row size, even if it's the only column in the table.
mysql> CREATE TABLE foo ( v VARCHAR(65534) );
ERROR 1118 (42000): Row size too large. The maximum row size for the used table type, not counting BLOBs, is 65535. This includes storage overhead, check the manual. Yo...
Simple way to transpose columns and rows in SQL?
...VOT and then an aggregate function with a CASE statement to PIVOT:
Create Table:
CREATE TABLE yourTable([color] varchar(5), [Paul] int, [John] int, [Tim] int, [Eric] int);
INSERT INTO yourTable
([color], [Paul], [John], [Tim], [Eric])
VALUES
('Red', 1, 5, 1, 3),
('Green', 8, 4, 3, 5),...