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MySQL Update Inner Join tables query
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Update:
Since you said the query yielded a syntax error, I created some tables that I could test it against and confirmed that there is no syntax error in my query:
mysql> create table business (business_id int unsigned primary key auto_increment, mapx varchar(255), mapy varchar(255)) engine=...
Simulating group_concat MySQL function in Microsoft SQL Server 2005?
...to do this. Lots of ideas out there, though.
Best one I've found:
SELECT table_name, LEFT(column_names , LEN(column_names )-1) AS column_names
FROM information_schema.columns AS extern
CROSS APPLY
(
SELECT column_name + ','
FROM information_schema.columns AS intern
WHERE extern.table_n...
Newline in markdown table?
I have the following cells in a markdown table:
4 Answers
4
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MySQL Great Circle Distance (Haversine formula)
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@FosAvance Yes, this query would work if you have markers table with id, lan and lng fields.
– Pavel Chuchuva
Mar 29 '14 at 23:08
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How do I output coloured text to a Linux terminal?
...ours)
bold/bright off 21
underline off 24
inverse off 27
See the table on Wikipedia for other, less widely supported codes.
To determine whether your terminal supports colour sequences, read the value of the TERM environment variable. It should specify the particular terminal type used (e...
How do I catch a PHP fatal (`E_ERROR`) error?
...ace = print_r( debug_backtrace( false ), true );
$content = "
<table>
<thead><th>Item</th><th>Description</th></thead>
<tbody>
<tr>
<th>Error</th>
<td><pre&...
“Insert if not exists” statement in SQLite
...te database. I am trying to insert values ( users_id , lessoninfo_id ) in table bookmarks , only if both do not exist before in a row.
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Center image in table td in CSS
I've been trying to align an image to the center of the table td. It worked with setting margin-left to a specific value but it also increased the size of td too and that isn't exactly what I wanted
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What's the purpose of SQL keyword “AS”?
You can set table aliases in SQL typing the identifier right after the table name.
9 Answers
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A beginner's guide to SQL database design [closed]
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Experience counts for a lot, but in terms of table design you can learn a lot from how ORMs like Hibernate and Grails operate to see why they do things. In addition:
Keep different types of data separate - don't store addresses in your order table, link to an address ...