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WordPress:Backing Up Your Database

來自站長百科
Seadragon530（討論 | 貢獻(xiàn)）2008年4月25日 (五) 17:43的版本
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It is strongly recommended that you backup your database at regular intervals and before an upgrade.

強(qiáng)烈建議定時(shí)備份，每次更新前也做一次備份。.

Restoring your database from backup is then possible if something goes wrong.

從你的備份中恢復(fù)數(shù)據(jù)庫可以在你遇到問題時(shí)使用。

Using phpMyAdmin

WordPress:phpMyAdmin is the name of the program used to manipulate your database.

Information below has been tried and tested using phpMyAdmin versions 2.5.3, 2.5.7-pl1, and 2.6.1-pl3 running on Unix.

使用 phpMyAdmin

phpMyAdmin是一個(gè)用來操作你的數(shù)據(jù)庫的程序.

下邊的信息已經(jīng)通過使用phpMyAdmin versions 2.5.3, 2.5.7-pl1，和2.6.1-pl3運(yùn)行在Unix系統(tǒng)上的測試。

Backup Process with phpMyAdmin

    thumb|Image#1
  1. Log into phpMyAdmin on your server
    2. thumb|Image#2
  2. From the main login screen, select 'Databases' (Image#1)
    3. thumb|Image#3
  3. Now click the name of your database - or your WordPress database if you have several databases. (Image#2)
    4. thumb|Image#4
  4. The next screen will show you all the tables inside your WordPress database.
    Ignore those, and click the 'Export' tab on the top set of tabs. (Image#3)
  5. Look at the left box at the top of the Export section. All the tables in the database you selected are in that box.(Image#4)
    6. thumb|Image#5
    • If you have other programs that use the database, then choose only those tables that correspond to your wordpress install. They will be the ones with that start with "wp_" or whatever 'table_prefix' you specified in your 'wp-config.php' file.
    • If you only have your WordPress blog installed, in the left column, click 'Select All'.
  6. Ensure that the SQL button is selected too. (Image#5)
    • The SQL section
    • Tick the following boxes: Structure, 'Add DROP TABLE', 'Add AUTO_INCREMENT' and 'Enclose table and field names with backquotes'
  7. The DATA section
      8. thumb|Image#6
    • Leave the boxes inside this section unticked, but make sure to keep the checkbox next to the "DATA" heading checked.
  8. Tick the 'Save as file' option, and leave the template name alone.
    For now, select 'None' for compression.
  9. Now click 'Go' and you should be prompted for a file to download. Save the file to your computer. (Image#6)
    Depending on the database size, this may take a few moments.
  10. Once that download is complete, check the 'zipped' option, click 'Go', and download the next file.
    If you wanted, you could download a backup in each of the compression formats. Your choice.
  11. You have now backed up your database.
    12. Remember - you have NOT backed up the files and folders - such as images - but all your posts and comments are now safe.

使用phpMyAdmin的備份過程

    thumb|Image#1
  1. 在你的服務(wù)器上登陸phpMyAdmin
    2. thumb|Image#2
  2. 從主登陸界面選擇 'Databases' (Image#1)
    3. thumb|Image#3
  3. 現(xiàn)在點(diǎn)你的數(shù)據(jù)庫的名字 – 或者你的 WordPress數(shù)據(jù)庫，如果你有好幾個(gè)數(shù)據(jù)庫的話. (Image#2)
    4. thumb|Image#4
  4. 下一個(gè)界面將顯示你的 WordPress 數(shù)據(jù)庫中所有的表格.
    忽略這些，在頂部標(biāo)簽中點(diǎn)擊'Export' 標(biāo)簽. (Image#3)
  5. 查看Export部分的頂部左邊框. 所有你選擇的數(shù)據(jù)庫中的表格都在這個(gè)方框中.(Image#4)
    6. thumb|Image#5
    • 如果你有別的使用數(shù)據(jù)庫的程序,那么選擇那些符合 wordpress安裝的表格 . 它們以 "wp_" 或者是 'table_prefix' 開頭，你在你的 'wp-config.php' 文件中詳細(xì)指定過的.
    • 如果你只安裝了 WordPress blog, 在左邊欄中點(diǎn)擊 'Select All'.
  6. 確保SQL 按鈕被選中. (Image#5)
    • SQL 部分
    • 勾選一下方框: Structure, 'Add DROP TABLE', 'Add AUTO_INCREMENT' 和 'Enclose table and field names with backquotes'
  7. DATA部分
      8. thumb|Image#6
    • 這部分之內(nèi)的方框不要勾選，但是要確定在保持"DATA"旁邊的復(fù)選框是選中狀態(tài).
  8. 勾選 'Save as file' 操作, 留下一個(gè)模板名字.
    現(xiàn)在壓縮選中 'None'.
  9. 現(xiàn)在點(diǎn)擊 'Go' ，你應(yīng)該被提示說有個(gè)文件下載，保存這個(gè)文件到你的電腦上. (Image#6)
    根據(jù)數(shù)據(jù)庫的大小，這會花去你幾分鐘的時(shí)間.
  10. 下載完成后，查看'zipped' 操作, 點(diǎn)擊 'Go', 下載另外一個(gè)文件.
    如果你想的話，你可以下載每個(gè)文件的壓縮格式的備份。你的選擇.
  11. 現(xiàn)在，你的數(shù)據(jù)庫已經(jīng)備份完畢.
    12. 記住 – 你沒有備份文件和文件夾 – 如圖片- 但是所有你的文章和評論現(xiàn)在已經(jīng)是安全的了.

Using Straight MySQL Commands

phpMyAdmin can not handle large databases so using straight MySQL code will help.

1. Change your directory to the directory you want to dump things to: 

user@linux:~> cd files/blog

2. Use mysqldump to dump all database tables. To dump only certain tables from the database, give their names at the place shown by (tablename tablename tablename), and omit the parentheses ( ) in any case. (For help, try: man mysqldump.): 

user@linux:~/files/blog> mysqldump --add-drop-table -h mysqlhostserver
 -u mysqlusername -p databasename (tablename tablename tablename) | bzip2
 -c > blog.bak.sql.bz2

Enter password: (enter your mysql password)
user@linux~/files/blog>
Example:
mysqldump --add-drop-table -h db01.example.net -u dbocodex -p dbwp | bzip2 -c > blog.bak.sql.bz2

Enter password: my-password
user@linux~/files/blog>

The bzip2 -c after the | (pipe) means the backup is compressed on the fly, and the > blog.bak.sql.bz2 sends the bzip output to a file named blog.bak.sql.bz2. It does in one line the same thing that these two commands do: 

mysqldump --add-drop-table -h db01.example.net -u dbocodex -p dbwp > blog.bak.sql
bzip2 blog.bak.sql

直接使用 MySQL 命令

phpMyAdmin 不能掌控大的數(shù)據(jù)庫所以用直接 MySQL 代碼會有所幫助 will help.

1. 把目錄改成你想儲存臨時(shí)數(shù)據(jù)的地方: 

user@linux:~> cd files/blog

2. 使用 mysqldump 來儲存所有的數(shù)據(jù)庫表格. 想儲存某個(gè)特定的數(shù)據(jù)庫表格,在通過(tablename tablename tablename)顯示出來的地方給它們命名, 忽略( ) 中的圓括號. (想獲得幫助信息, 嘗試: man mysqldump.): 

user@linux:~/files/blog> mysqldump --add-drop-table -h mysqlhostserver
 -u mysqlusername -p databasename (tablename tablename tablename) | bzip2
 -c > blog.bak.sql.bz2

Enter password: (enter your mysql password)
user@linux~/files/blog>
Example:
mysqldump --add-drop-table -h db01.example.net -u dbocodex -p dbwp | bzip2 -c > blog.bak.sql.bz2

Enter password: my-password
user@linux~/files/blog>

| (pipe)之后的bzip2 -c語句意思是備份已經(jīng)被壓縮, > blog.bak.sql.bz2發(fā)送bzip到一個(gè)名字叫做的文件中。 blog.bak.sql.bz2. 和下面兩個(gè)命令做的是同樣的事情： 

mysqldump --add-drop-table -h db01.example.net -u dbocodex -p dbwp > blog.bak.sql
bzip2 blog.bak.sql

Using MySQL Administrator

MySQL Administrator is a program for performing administrative operations, such as configuring your MySQL server, monitoring its status and performance, starting and stopping it, managing users and connections, performing backups, restoring backups and a number of other administrative tasks. You can perform most of those tasks using a command line interface such as that provided by mysqladmin or mysql, but MySQL Administrator is advantageous in the following respects:

  • Its graphical user interface makes it more intuitive to use.
  • It provides a better overview of the settings that are crucial for the performance, reliability, and security of your MySQL servers.
  • It displays performance indicators graphically, thus making it easier to determine and tune server settings.
  • It is available for Linux, Windows and MacOS X, and allows a remote client to backup the database across platforms. As long as you have access to the MySQL databases on the remote server, you can backup your data to wherever you have write access.
  • There is no limit to the size of the database to be backed up as there is with phpMyAdmin.

MySQL Administrator is designed to work with MySQL servers versions 4.0 and above.

使用 MySQL 管理員

MySQL 管理員是一個(gè)執(zhí)行管理的程序。 操作, 如設(shè)置你的MySQL 服務(wù)器, 監(jiān)測它的狀態(tài)和表現(xiàn), 開始或者是停止, 管理用戶和連接，執(zhí)行備份，儲存?zhèn)浞莸鹊纫幌盗衅渌芾砣蝿?wù)。你可以使用命令行界面執(zhí)行這些任務(wù)中的大多數(shù)。如由mysqladmin 或者 mysql提供的, 但是MySQL 管理員在下面這些方面更具有優(yōu)勢：

  • 圖形用戶界面讓它更容易使用
  • 它提供了更好的對你的MySQL服務(wù)器的界面，可靠性和安全性至關(guān)緊要的設(shè)置總覽。
  • 它顯示性能指示器是圖形化的，這更容易決定和調(diào)整服務(wù)器設(shè)置。
  • Linux, Windows and MacOS X都可以使用, 允許遠(yuǎn)程客戶端備份數(shù)據(jù)庫交叉平臺. 只要你進(jìn)入了遠(yuǎn)程MySQL 數(shù)據(jù)庫, 你就可以備份你的數(shù)據(jù)到任何具有寫入權(quán)限的地方。
  • 對備份數(shù)據(jù)庫的大小沒有限制，因?yàn)橛衟hpMyAdmin.

MySQL Administrator 是為MySQL servers 版本 4.0 及以上設(shè)計(jì)使用的。

Getting MySQL Admin

MySQL Admin may be downloaded from the MySQL.Com site. Installation binaries and documentation may also be found there.

得到MySQL 管理

MySQL 管理可以從the MySQL.Com site下載. 安裝文件也可以從這里找到.

Backing Up the Database

This assumes you have already installed MySQL Admin and set it up so that you can login to the MySQL Database Server either locally or remotely. Refer to the documentation that comes with the installation package of MySQL Admin for your platform for installation instructions.

1. Open the MySQL Admin client and login as you had previously set up to do.

2. From the icon menu on the left hand side of the client window select Backup.

3. If you have not already created a Backup Project, do this now by clicking on the "New Project" button at the lower part of the window and type in a name for the Backup Project where prompted.

4. Select one or more databases that you want to Backup (in the MySQL Admin client these are called a "Schema" (pl. "Schemata")). Add them to the Backup Content window on the right using the right-pointing arrow button.

5. When you have selected the Schema(ta), you can save the Backup Project. Or you may simply choose to Backup Now using the button on the lower right of the window.

6. A dialogue will come up asking you where to put the Backup. Enter the pathname or browse to the location using the dialogue.

7. Assuming all is correct (and you have write permissions in the directory to which you are writing the Backup), the backup will complete shortly.

備份數(shù)據(jù)庫

這里假設(shè)你已經(jīng)安裝了MySQL Admin 并設(shè)置好，這樣你就可以本地或者遠(yuǎn)程登陸MySQL Database Server. 查閱安裝說明中的MySQL Admin安裝包文件。

1. 打開MySQL Admin 客戶端登陸.

2. 從程序窗口左邊的圖像菜單中選擇Backup.

3. 如果你沒有創(chuàng)建一個(gè)Backup 項(xiàng)目, 現(xiàn)在點(diǎn)擊窗口下部的 "New Project" 按鈕，為Backup Project輸入一個(gè)名字.

4. 選擇一個(gè)或者更多你想備份的數(shù)據(jù)庫(在MySQL Admin 程序中，這些叫做 "Schema" (pl. "Schemata")). 使用指向右邊的箭頭把它們加入到右邊的Backup Content 窗口 。

5. 當(dāng)你選擇了Schema(ta), 你可以保存?zhèn)浞蓓?xiàng)目. 或者你可以簡單的選擇右下方的Backup Now 按鈕.

6. 一個(gè)對話框?qū)a(chǎn)生，詢問你要把備份保存在什么地方。輸入路徑名字或者通過瀏覽保存。

7. 假設(shè)所有步驟都正確 (并且你在寫備份的目錄擁有寫入權(quán)限), 備份會很快完成.

Restoring From a Backup

1. Open the MySQL Admin client and login as you had previously set up to do.

2. From the icon menu on the left hand side of the client window select Restore.

3. Click the "Open Backup File" button on the lower right of the window.

4. Type in or browse to the Schema(ta) backup file and select. Click "Open".

5. The Target Schema(ta) will most likely be the "Original Location", or you may choose an alternate location using the drop-down menu.

6. Click the "Start Restore" button on the lower right of the window. The database restore will commence.

從備份中恢復(fù)

1. 打開MySQL Admin 程序登陸.

2. 從圖形界面的程序窗口左手邊選擇 Restore.

3. 點(diǎn)擊右下方的"Open Backup File" 按鈕。

4. 輸入或者瀏覽至 Schema(ta) 備份文件，選擇，點(diǎn)擊"Open".

5. 目標(biāo) Schema(ta) 通常會在"Original Location", 或者你可以使用下拉菜單選擇一個(gè)替代位置.

6. 點(diǎn)擊右窗口下方 "Start Restore" 按鈕。 數(shù)據(jù)庫恢復(fù)開始


Using WordPress Database Backup Plugin

Austin Matzko maintains a WordPress plugin originally created by Skippy called WordPress Database Backup. It was bundled with WordPress 2.0 but is no longer included with WordPress 2.1.

使用WordPress 數(shù)據(jù)庫備份插件

Austin Matzko 維持了一個(gè) WordPress 插件 ，最初是Skippy創(chuàng)建的，叫做 called WordPress 數(shù)據(jù)庫備份. 它與WordPress 2.0綁定，但是現(xiàn)在不包括在WordPress 2.1中了。

Install the Plugin

  1. If you do download the plugin, follow the directions in the wp-db-backup.txt file to install the plugin correctly.

安裝插件

  1. 如果你下載了這個(gè)插件，按照wp-db-backup.txt 文件中的說明正確安裝插件.

Activate the Plugin

  1. Make sure the wp-content folder is writeable by your server (change its CHMOD)
  2. Go to your Administration > Plugins > Plugins Panel and activate the plug-in

激活插件

  1. 確定wp-content 文件夾是通過你的服務(wù)器 可寫入的 (更改 CHMOD)
  2. 進(jìn)入Administration > Plugins > Plugins Panel 激活插件。

Backing up

  1. Navigate to Administration > Manage > Backup Panel
  2. Select any tables, in addition to the core WordPress tables, that should be backed-up. Select the Backup Options; the backup can be saved on the server, downloaded, or emailed. Finally, click on the Backup button to actually perform the backup. If you have installed the WP-Cron plugin, you can schedule daily backups.

備份

  1. 進(jìn)入Administration > Manage > Backup Panel
  2. 選擇任何表格, 除了核心WordPress表格, 都應(yīng)該被備份. 選擇備 Backup操作; 備份會被保存到服務(wù)器上，下載或者被郵寄. 最后, 點(diǎn)擊Backup按鈕來執(zhí)行備份。如果你安裝了WP-Cron 插件, 你可以設(shè)置每日備份.

Restoring the Data

The file created is a standard SQL file. If you want information about how to upload that file, look at WordPress:Restoring Your Database From Backup.

恢復(fù)數(shù)據(jù)

創(chuàng)建的文件是標(biāo)準(zhǔn)的 SQL 文件. 如果你想知道如何上傳文件，參見從備份中恢復(fù)數(shù)據(jù).

Using CocoaMySQL

CocoaMySQL is a free MySQL client for Mac OS X.

Open your database from CocoaMySQL and choose File → Export → MySQL file…, and check these options:

  • Add drop table
  • Add create table
  • Add table content

WordPress:Image:cocoamysql_export_dialog.png

使用 CocoaMySQL

CocoaMySQL是一個(gè)免費(fèi)的基于Mac OS X的 MySQL 客戶端.

從CocoaMySQL 打開你的數(shù)據(jù)庫選擇File → Export → MySQL file…, 查看如下操作:

  • Add drop table
  • Add create table
  • Add table content

WordPress:Image:cocoamysql_export_dialog.png

Resources and Backup Plugins

資源和備份插件