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深入SQLite一：简介
基本命令：
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D:\>sqlite3 database.db
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sqlite> create table cnblogs(user text, fans integer);
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sqlite> insert into cnblogs values('txw1958',36);
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sqlite> select * from cnblogs;
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sqlite> update cnblogs set fans=100 where user='txw1958';
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sqlite> delete from cnblogs where user='txw1958';
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sqlite> select * from cnblogs;
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sqlite> drop table cnblogs;
SQLite系统命令
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sqlite> .help
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.backup DB FILE Backup DB (default "main") to FILE(备份数据库到文件)
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.bail ON|OFF Stop after hitting an error. Default OFF(遇到错误退出，默认关闭)
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.databases List names and files of attached databases (查看目前挂的数据库的名字与文件)
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.dump TABLE ... Dump the database in an SQL text format(以SQL格式输出表结构)
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If TABLE specified, only dump tables matching
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LIKE pattern TABLE.
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.echo ON|OFF Turn command echo on or off 打开/关闭命令行回显
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.exit Exit this program(退出程序)
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.explain ON|OFF Turn output mode suitable for EXPLAIN on or off.
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With no args, it turns EXPLAIN on.
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.header(s) ON|OFF Turn display of headers on or off 打开|关闭头显示
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.help Show this messfans(显示帮助信息)
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.import FILE TABLE Import data from FILE into TABLE(把文件中的数据导入到表中,各字段用separator的值为分隔符)
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.indices TABLE Show names of all indices 显示索引名字
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If TABLE specified, only show indices for tables
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matching LIKE pattern TABLE.
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.load FILE ENTRY Load an extension library 加载扩展库
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.log FILE|off Turn logging on or off. FILE can be stderr/stdout 打开|关闭日志记录
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.mode MODE TABLE Set output mode where MODE is one of: (设置输出格式)
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csv Comma-separated values (各字段以逗号为分隔符输出)
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column Left-aligned columns. (See .width)(以.width设置的宽度显示各字段)
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html HTML code (html表格格式输出)
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insert SQL insert statements for TABLE (以insert SQL语句形式输出)
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line One value per line (field = value的形式逐行输出)
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list Values delimited by .separator string (各字段以separator的值为分隔符输出)
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tabs Tab-separated values
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tcl TCL list elements
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.nullvalue STRING Print STRING in place of NULL values (输出字符串取代空值)
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.output FILENAME Send output to FILENAME (设置输出到文件)
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.output stdout Send output to the screen (设置输出到屏幕,默认)
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.prompt MAIN CONTINUE Replace the standard prompts (修改提示符)
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.quit Exit this program (修改分隔符)
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.read FILENAME Execute SQL in FILENAME (执行文件中的SQL)
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.restore DB FILE Restore content of DB (default "main") from FILE
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.schema TABLE Show the CREATE statements
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If TABLE specified, only show tables matching
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LIKE pattern TABLE.
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.separator STRING Change separator used by output mode and .import (改变输出模式分隔符)
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.show Show the current values for various settings (显示各项配置信息)
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.stats ON|OFF Turn stats on or off
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.tables TABLE List names of tables (列出表名)
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If TABLE specified, only list tables matching
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LIKE pattern TABLE.
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.timeout MS Try opening locked tables for MS milliseconds (超时时间,单位:毫秒)
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.width NUM1 NUM2 ... Set column widths for "column" mode(设置列宽)
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.timer ON|OFF Turn the CPU timer measurement on or off
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sqlite>
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