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android sqlite3使用命令

  • 分类:数据存储
  • 本文标签: SQLite
  • 发布时间:2016-12-16 22:14:01
  • 查看数: 7

sqlite3可以让我们对机器中的数据库直接进行操作,对于调试机,可以直接通过adb shell进入机器后使用。


开启模拟器,执行adb shell后进入adb 环境就可以用sqlite3这个工具。

myron@myron-laptop:~$ adb shell
# sqlite3
SQLite version 3.7.4
Enter ".help" for instructions
Enter SQL statements terminated with a ";"

sqlite3的命令分为SQL命令和非SQL命令

其中非SQL命令以"."开头,可以通过".help"来查看,通过".quit"退出sqlite3

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> .quit
# 

对于不以"."开头的语句sqlite3都当作SQL语句来执行,SQL语句以分号结束,下面目录中有应用自己的数据库

# pwd
/data/data/com.android.providers.settings/databases
# ls
settings.db
settings.db-shm
settings.db-wal

sqlite3后接数据库名可以打开已存在的数据库或者新建一个数据库,下面为打开目录中的settings.db

# sqlite3 settings.db
SQLite version 3.7.4
Enter ".help" for instructions
Enter SQL statements terminated with a ";"
sqlite> 


sqlite3提供了多个命令查看数据库的schema,".tables"可以查看当前数据库的所有表

sqlite> .tables
android_metadata   bookmarks          system           
bluetooth_devices  secure 

通过select 语句可以查看表的内容

sqlite> select * from secure;
_id|name|value
1|bluetooth_on|0
2|data_roaming|0
4|location_providers_allowed|gps
5|assisted_gps_enabled|1
6|network_preference|1
7|usb_mass_storage_enabled|1
8|wifi_on|0
9|wifi_networks_available_notification_on|1
10|preferred_network_mode|0
11|cdma_cell_broadcast_sms|1
12|preferred_cdma_subscription|1
13|mock_location|1
14|backup_enabled|1
15|backup_transport|android/com.android.internal.backup.LocalTransport
16|mount_play_not_snd|1
17|mount_ums_autostart|0
18|mount_ums_prompt|1
19|mount_ums_notify_enabled|1
20|accessibility_script_injection|0
21|accessibility_web_content_key_bindings|0x13=0x01000100; 0x14=0x01010100; 0x15=0x02000001; 0x16=0x02010001; 0x200000013=0x02000601; 0x200000014=0x02010601; 0x200000015=0x03020101; 0x200000016=0x03010201; 0x200000023=0x02000301; 0x200000024=0x02010301; 0x200000037=0x03070201; 0x200000038=0x03000701:0x03010701:0x03020701;
22|long_press_timeout|500
23|touch_exploration_enabled|0
24|android_id|702662e68643232c
27|enabled_input_methods|com.android.inputmethod.pinyin/.PinyinIME:jp.co.omronsoft.openwnn/.OpenWnnJAJP:com.android.inputmethod.latin/.LatinIME
28|input_methods_subtype_history|
29|selected_input_method_subtype|-1
30|default_input_method|com.android.inputmethod.latin/.LatinIME
31|selected_spell_checker|com.android.inputmethod.latin/.spellcheck.AndroidSpellCheckerService
32|selected_spell_checker_subtype|0
33|throttle_reset_day|10
34|device_provisioned|1
35|install_non_market_apps|1
36|backup_provisioned|1
37|wifi_country_code|us

如果第一行的header不显示,可以通过如下命令让其显示

sqlite> .header on
sqlite> 




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