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INTEGER INTEGER INT. . 4 .
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SELECT * FROM _;
mysql> SELECT * FROM developers;
+-------------+-----------------------+----------------+
| name | email | job |
+-------------+-----------------------+----------------+
| Joe Smith | [email protected] | toolchain |
| John Doe | [email protected] | portage |
| Chris White | [email protected] | documentation |
| Sam Smith | [email protected] | amd64 |
| Jane Doe | NULL | Outsourced job |
+-------------+-----------------------+----------------+
SELECT * FROM _ WHERE =;
mysql> SELECT * FROM developers WHERE name = 'Chris White';
+-------------+-----------------------+---------------+
| name | email | job |
+-------------+-----------------------+---------------+
| Chris White | [email protected] | documentation |
+-------------+-----------------------+---------------+
SELECT 1,2,3 FROM _ [ WHERE =];
mysql> SELECT email,job FROM developers WHERE name = 'Chris White';
+-----------------------+---------------+
| email | job |
+-----------------------+---------------+
| [email protected] | documentation |
+-----------------------+---------------+
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HyperText Markup Language (HTML) , WEB. HTML- WEB-. HTML, WEB- HTML . HTML , , .
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1 index.html
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TRUE , FALSE .
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3 dbconnect.php.
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4 topframe.php
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bool session_destroy (void)
session_destroy() , .
int header (string string [, bool replace])
header() HTTP-.
, 5 logout.php - main.php.
5 logout.php
- 2 - 6 main.php.
6 main.php
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action = login.php
, login.php, login pass .
7 login.php
