SQLITE學習筆記二(資料庫管理,命令列操作)
阿新 • • 發佈:2019-02-16
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。