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How do I create a SQL table under a different schema?
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Right-click on the tables node and choose New Table...
With the table designer open, open the properties window (view -> Properties Window).
You can change the schema that the table will be made in by choosing a schema in the properties wind...
INNER JOIN ON vs WHERE clause
...It is generally considered more readable, especially when you join lots of tables.
It can also be easily replaced with an OUTER JOIN whenever a need arises.
The WHERE syntax is more relational model oriented.
A result of two tables JOINed is a cartesian product of the tables to which a filter is ...
Troubleshooting “Illegal mix of collations” error in mysql
...the query. Here is an example that uses the COLLATE clause:
SELECT * FROM table ORDER BY key COLLATE latin1_general_ci;
Another option is to use the BINARY operator:
BINARY str is the shorthand for CAST(str AS BINARY).
Your solution might look something like this:
SELECT * FROM table WHERE...
With MySQL, how can I generate a column containing the record index in a table?
...itialization without requiring a separate SET command.
Test case:
CREATE TABLE league_girl (position int, username varchar(10), score int);
INSERT INTO league_girl VALUES (1, 'a', 10);
INSERT INTO league_girl VALUES (2, 'b', 25);
INSERT INTO league_girl VALUES (3, 'c', 75);
INSERT INTO league_girl...
Favourite performance tuning tricks [closed]
...e following...
99% of problems I have seen are caused by putting too many tables in a join. The fix for this is to do half the join (with some of the tables) and cache the results in a temporary table. Then do the rest of the query joining on that temporary table.
Query Optimisation Checklist
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jquery UI Sortable with table and tr width
I am using jQuery UI sortable to make my table grid sortable. The code seems to work fine but because I am not adding width to td s, when I drag the tr it shrinks the content.
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How To Create Table with Identity Column
I have an existing table that I am about to blow away because I did not create it with the ID column set to be the table's Identity column.
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How do I explicitly specify a Model's table-name mapping in Rails?
I have a Model class called Countries and I want it to map to a DB table called 'cc'.
2 Answers
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Alter a MySQL column to be AUTO_INCREMENT
I’m trying to modify a table to make its primary key column AUTO_INCREMENT after the fact. I have tried the following SQL, but got a syntax error notification.
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Inserting multiple rows in mysql
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it's also possible to use INSERT INTO Table SELECT 1, '14/05/2012', 3 UNION SELECT 2, '05/14/2012', 3. of course, this will only be better of the inserted values are coming from different tables.
– Zohar Peled
Jun 1 '15 at 9...