Sqlite3 allows us to directly operate the database on the machine. for debugging machines, we can directly use ADB shell to enter the machine and use it.
Enable the simulator. Run the ADB shell and enter the ADB environment. You can use the sqlite3 tool.
myron@myron-laptop:~$ adb shell# sqlite3SQLite version 3.7.4Enter ".help" for instructionsEnter SQL statements terminated with a ";"
Sqlite3 Commands include SQL commands and non-SQL commands.
The non-SQL command starts with ".". You can view it through ". Help" and exit sqlite3 through ". Quit ".
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 offsqlite> .quit#
For statements not starting with ".", sqlite3 is executed as an SQL statement, and the SQL statement ends with a semicolon. The following directory contains the application database.
# pwd/data/data/com.android.providers.settings/databases# lssettings.dbsettings.db-shmsettings.db-wal
After sqlite3 is connected to the database name, you can open an existing database or create a new database. below is the settings. DB in the Open Directory.
# sqlite3 settings.dbSQLite version 3.7.4Enter ".help" for instructionsEnter SQL statements terminated with a ";"sqlite>
Sqlite3 provides multiple commands to view the schema of the Database. ". Tables" allows you to view all the tables of the current database.
sqlite> .tablesandroid_metadata bookmarks system bluetooth_devices secure
You can use the SELECT statement to view the table content.
sqlite> select * from secure;_id|name|value1|bluetooth_on|02|data_roaming|04|location_providers_allowed|gps5|assisted_gps_enabled|16|network_preference|17|usb_mass_storage_enabled|18|wifi_on|09|wifi_networks_available_notification_on|110|preferred_network_mode|011|cdma_cell_broadcast_sms|112|preferred_cdma_subscription|113|mock_location|114|backup_enabled|115|backup_transport|android/com.android.internal.backup.LocalTransport16|mount_play_not_snd|117|mount_ums_autostart|018|mount_ums_prompt|119|mount_ums_notify_enabled|120|accessibility_script_injection|021|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|50023|touch_exploration_enabled|024|android_id|702662e68643232c27|enabled_input_methods|com.android.inputmethod.pinyin/.PinyinIME:jp.co.omronsoft.openwnn/.OpenWnnJAJP:com.android.inputmethod.latin/.LatinIME28|input_methods_subtype_history|29|selected_input_method_subtype|-130|default_input_method|com.android.inputmethod.latin/.LatinIME31|selected_spell_checker|com.android.inputmethod.latin/.spellcheck.AndroidSpellCheckerService32|selected_spell_checker_subtype|033|throttle_reset_day|1034|device_provisioned|135|install_non_market_apps|136|backup_provisioned|137|wifi_country_code|us
If the header of the first line is not displayed, run the following command to display the header:
sqlite> .header onsqlite>