SQLITE学习笔记二(数据库管理，命令行操作)

1.在下载一个windows下shell程序，下载地址：http://www.sqlite.com/sqlite-shell-win32-x86-3070900.zip

2.下载完成后解压得到sqlite3.exe，放置在任意目录；

3.使用方式：

   a.打开数据库

Microsoft Windows XP [版本 5.1.2600] (C) 版权所有 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 --参数为要打开的数据库名（存在目录时请带//访问） SQLite version 3.7.9 2011-11-01 00:52:41 Enter ".help" for instructions Enter SQL statements terminated with a ";" sqlite>

  b. 查看命令行帮助：

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.参考以上命令行帮助即可操作数据库，举例如下：

sqlite> .databases --查看数据库的存放路径 seq name file --- --------------- ---------------------------------------------------------- 0 main E:\tmp\sqlite_stduy\db\sqlite_study.db sqlite> .tables --查看当前数据库中的表 tbl_product tbl_product1 tbl_product2 tbl_product3 sqlite> select * from tbl_product3; --执行SQL语句 1|iphone4s sqlite> insert into tbl_product3 values('nokia'); --SQL语句出错提示 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 --设置显示模式（以Tab键做为列间间隔符） sqlite> select * from tbl_product3; 1 iphone4s 2 nokia sqlite> .show --查看当前shell的环境变量 echo: off explain: off headers: off mode: list nullvalue: "" output: stdout separator: "\t" stats: off width: sqlite>.quit --退出数据库 E:\tmp\sqlite_stduy\db>

 其他相关操作请参考.help进行。