Chapter 24
- MySQL
Overview
MySQL Control Panel Feature
Examples of SQL Statements
Quick Actions
Advanced Queries
Table Select
Using MySQL With CGI Scripts
References and Tutorials
Table
Select
From this page you can perform a SELECT operation on the table.
The list box in the upper left contains the names of all the fields in
the table. Select from the list box the columns you wish to see in your
result set.
Any valid WHERE clause can be entered in the "Add search conditions"
text box.
The field names and a text box are listed again under the "Do a 'query
by example'" bullet. These can be used build a WHERE clause more
easily than typing the entire clause into the textbox above. Each entry
becomes a condition of the WHERE clause. The conditional operator used
is LIKE which allows the wildcard operators "%" and "_"
to represent zero or more characters, and a single character, respectively.
-
SELECT Name, Telephone
FROM Phonebook
WHERE Id LIKE ÔJoe%Õ;
The wildcard
characters can both appear in the same string and can appear more than
one as needed. Note that using no wildcard characters is equivalent to
using "=" instead of LIKE. LIKE is generally slower than "="
since MySQL must still check for wildcards characters. To use "="
or other conditions you must type them in the general WHERE clause textbox.
Press the Go button at the bottom of the page to process the select statement.
If any records are found, they will be displayed in a table for you.
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