Hướng dẫn sử dụng MySQL part 20 ppt

... connect to MySQL on <?= mysql_ get_host_info() ?> mysql_ get_proto_info • Retrieves information about the protocol used in a MySQL connection $info = mysql_ get_proto_info([ $mysql ]) mysql_ get_proto_info ... connected to MySQL using protocol <?= mysql_ get_proto_info() ?> mysql_ get_server_info • Retrieves information about a MySQL server $info = mysql_ get_s...

Ngày tải lên: 02/07/2014, 12:20

... outcome, the official source of MySQL is MySQL AB at www .mysql. com. DRAFT, 8 /20/ 01 Copyright © 200 1 O’Reilly & Associates, Inc. mysql Executes SQL against MySQL. You can also use it to execute ... and support of MySQL. MySQL AB is a Swedish company run by MySQL s core devel- opers. MySQL AB owns the copyright to MySQL as well as the trademark MySQL . Since the initial...

Ngày tải lên: 02/07/2014, 12:20

... following tables already exist: mysql& gt; SHOW DATABASES; + + | Database | + + | mysql | | test | + + 2 rows in set (0.37 sec) mysql& gt; The first database, mysql, is MySQL s system database. You ... of their signed counterparts. An unsigned TINYINT MySQL s single byte numeric type—has a range of 0 to 255 instead of the -127 to 127 range of its signed counterpart. MySQL provides mor...

Ngày tải lên: 02/07/2014, 12:20

... may need access to MySQL- specific functionality.MySQLdb is actually built on top of the MySQL C API, and it exposes that API to programs that wish to use it. This ability is particularly useful ... the format you wish to use by setting MySQLdb.paramstyle. The above example is MySQLdb.paramstyle = "format". The "format" value is the default for MySQLdb when a tuple of p...

Ngày tải lên: 02/07/2014, 12:20

... the database, to validate date values. MySQL only checks that months are in the range of 0-12 and dates are in the range of 0-31. February 31, 200 1 is therefore a legal MySQL date. More useful, however, ... is the fact that February 0, 200 1 is a legal date. In other words, you can use 0 to signify dates where you do not know a particu- lar piece of the date. Though MySQL is somewhat...

Ngày tải lên: 02/07/2014, 12:20

... database-specific datatypes. DRAFT, 8/24/01 Copyright © 200 1 O’Reilly & Associates, Inc. ResultSet objects. For databases that do not support a particular kind of metadata, DatabaseMetaData will ... The current value of the property or null if no current value is set. DRAFT, 8/24/01 Copyright © 200 1 O’Reilly & Associates, Inc. Struct Synopsis Class Name:java.sql.Struct Superclass:...

Ngày tải lên: 02/07/2014, 12:20

... one popular database product: MySQL. We start by introducing you to relational databases and MySQL. We then proceed to show you how to get up and running with MySQL and how to administer it. ... (continued) DRAFT, 8/17/01 Copyright  200 1 O’Reilly & Associates, Inc. 3 ISBN Title Author 0-446-67424-9 L.A. Confidential James Ellroy 0 -201 -54239-X An Introduction to Databas...

Ngày tải lên: 02/07/2014, 12:20

... /usr/local /mysql $ chgrp –R mysql /usr/local /mysql Set the ownership of the data directories to the MySQL administrative user you created earlier (for this example, mysql) . $ chown –R mysql /usr/local /mysql/ data ... mysql /usr/local /mysql/ data MySQL is now installed and ready to go. To start the server run safe_mysqld: $ bin/safe_mysqld –user =mysql & DRAFT, 8/1...

Ngày tải lên: 02/07/2014, 12:20

... Copyright  200 1 O’Reilly & Associates, Inc. 8 $ ls -l . . -rw-rw 1 mysql mysql 203 Aug 5 17:45 odin-bin.001 -rw-rw 1 mysql mysql 73 Aug 5 17:45 odin-bin.002 -rw-rw 1 mysql mysql 30 Aug ... use safe_mysqld to automatically start MySQL at boot. safe_mysqld is found in the bin directory of your MySQL installation (usually /usr/local /mysql/ bin). DRAFT, 8/17/01 Copyr...

Ngày tải lên: 02/07/2014, 12:20

... modified in the MySQL server which may improve your performance. A full reference on these parameters can be found in Chapter 20, or by typing mysqld –help. In general, when tuning MySQL, the two ... index that MySQL choose. Key is NULL if no index was chosen. Key_len Key_len lists the length of the index that MySQL choose. This also indicates how many parts of a multi-column ind...

Ngày tải lên: 02/07/2014, 12:20