1. 程式人生 > >SQLITE學習筆記二(資料庫管理,命令列操作)

SQLITE學習筆記二(資料庫管理,命令列操作)

2.下載完成後解壓得到sqlite3.exe,放置在任意目錄;

3.使用方式:

   a.開啟資料庫

Microsoft Windows XP [版本 5.1.2600]
(C) 版權所有 1985-2001 Microsoft Corp.

C:\Documents and Settings\socrates.WINXP-DUANYX>cd /d E:\tmp\sqlite_stduy\db

E:\tmp\sqlite_stduy\db>sqlite3.exe sqlite_study.db  --引數為要開啟的資料庫名(存在目錄時請帶//訪問)
SQLite version 3.7.9 2011-11-01 00:52:41
Enter ".help" for instructions
Enter SQL statements terminated with a ";"
sqlite>

  b. 檢視命令列幫助:

sqlite> .help
.backup ?DB? FILE      Backup DB (default "main") to FILE
.bail ON|OFF           Stop after hitting an error.  Default OFF
.databases             List names and files of attached databases
.dump ?TABLE? ...      Dump the database in an SQL text format
                         If TABLE specified, only dump tables matching
                         LIKE pattern TABLE.
.echo ON|OFF           Turn command echo on or off
.exit                  Exit this program
.explain ?ON|OFF?      Turn output mode suitable for EXPLAIN on or off.
                         With no args, it turns EXPLAIN on.
.header(s) ON|OFF      Turn display of headers on or off
.help                  Show this message
.import FILE TABLE     Import data from FILE into TABLE
.indices ?TABLE?       Show names of all indices
                         If TABLE specified, only show indices for tables
                         matching LIKE pattern TABLE.
.load FILE ?ENTRY?     Load an extension library
.log FILE|off          Turn logging on or off.  FILE can be stderr/stdout
.mode MODE ?TABLE?     Set output mode where MODE is one of:
                         csv      Comma-separated values
                         column   Left-aligned columns.  (See .width)
                         html     HTML <table> code
                         insert   SQL insert statements for TABLE
                         line     One value per line
                         list     Values delimited by .separator string
                         tabs     Tab-separated values
                         tcl      TCL list elements
.nullvalue STRING      Print STRING in place of NULL values
.output FILENAME       Send output to FILENAME
.output stdout         Send output to the screen
.prompt MAIN CONTINUE  Replace the standard prompts
.quit                  Exit this program
.read FILENAME         Execute SQL in FILENAME
.restore ?DB? FILE     Restore content of DB (default "main") from FILE
.schema ?TABLE?        Show the CREATE statements
                         If TABLE specified, only show tables matching
                         LIKE pattern TABLE.
.separator STRING      Change separator used by output mode and .import
.show                  Show the current values for various settings
.stats ON|OFF          Turn stats on or off
.tables ?TABLE?        List names of tables
                         If TABLE specified, only list tables matching
                         LIKE pattern TABLE.
.timeout MS            Try opening locked tables for MS milliseconds
.width NUM1 NUM2 ...   Set column widths for "column" mode
.timer ON|OFF          Turn the CPU timer measurement on or off
sqlite>

 c.參考以上命令列幫助即可操作資料庫,舉例如下:

sqlite> .databases   --檢視資料庫的存放路徑
seq  name             file

---  ---------------  ----------------------------------------------------------

0    main             E:\tmp\sqlite_stduy\db\sqlite_study.db

sqlite> .tables  --檢視當前資料庫中的表
tbl_product   tbl_product1  tbl_product2  tbl_product3
sqlite> select * from tbl_product3;  --執行SQL語句
1|iphone4s
sqlite> insert into tbl_product3 values('nokia'); --SQL語句出錯提示
Error: table tbl_product3 has 2 columns but 1 values were supplied
sqlite> insert into tbl_product3 values(2, 'nokia');
sqlite> select * from tbl_product3;
1|iphone4s
2|nokia
sqlite>.mode tabs  --設定顯示模式(以Tab鍵做為列間間隔符)
sqlite> select * from tbl_product3;
1       iphone4s
2       nokia
sqlite> .show  --檢視當前shell的環境變數
     echo: off
  explain: off
  headers: off
     mode: list
nullvalue: ""
   output: stdout
separator: "\t"
    stats: off
    width:
sqlite>.quit  --退出資料庫

E:\tmp\sqlite_stduy\db>

 其他相關操作請參考.help進行。