android shell 下查看 sqlite 数据库
查看Android板子上的数据库时，常用的办法
- 把 db 文件拉出来，然后用 sqlite 工具查看，AS也有对应的常见查看拉出来的文件，mac上，我常用的是 DB Browser for SQLite
- 使用调试时，web sqlite，也就是开源库
io.github.skyhacker2:sqliteonweb- 还有就是 root 情况下，使用 shell 中的工具 sqlite3
连接数据库
在 adb shell 里面使用 sqlite3 工具，指令格式为 sqlite3 xxx.db,完成数据库连接
rk3399_JH:/sdcard # sqlite3 /data/data/com.xx.xx/databases/UserDatabase.db
SQLite version 3.9.2 2015-11-02 18:31:45
Enter ".help" for usage hints.
sqlite>
常常地，需要访问 /data/data/com.xx.xx/databases/xxx.db 都是需要 root 的
查看数据库信息
连接数据库后，查看帮助指令
sqlite> .help
.backup ?DB? FILE Backup DB (default "main") to FILE
.bail on|off Stop after hitting an error. Default OFF
.binary on|off Turn binary output on or off. Default OFF
.clone NEWDB Clone data into NEWDB from the existing database
.databases List names and files of attached databases
.dbinfo ?DB? Show status information about the database
.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
.eqp on|off Enable or disable automatic EXPLAIN QUERY PLAN
.exit Exit this program
.explain ?on|off? Turn output mode suitable for EXPLAIN on or off.
With no args, it turns EXPLAIN on.
.fullschema Show schema and the content of sqlite_stat tables
.headers on|off Turn display of headers on or off
.help Show this message
.import FILE TABLE Import data from FILE into TABLE
.indexes ?TABLE? Show names of all indexes
If TABLE specified, only show indexes for tables
matching LIKE pattern TABLE.
.limit ?LIMIT? ?VAL? Display or change the value of an SQLITE_LIMIT
.log FILE|off Turn logging on or off. FILE can be stderr/stdout
.mode MODE ?TABLE? Set output mode where MODE is one of:
ascii Columns/rows delimited by 0x1F and 0x1E
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 strings
tabs Tab-separated values
tcl TCL list elements
.nullvalue STRING Use STRING in place of NULL values
.once FILENAME Output for the next SQL command only to FILENAME
.open ?FILENAME? Close existing database and reopen FILENAME
.output ?FILENAME? Send output to FILENAME or stdout
.print STRING... Print literal STRING
.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
.save FILE Write in-memory database into FILE
.scanstats on|off Turn sqlite3_stmt_scanstatus() metrics on or off
.schema ?TABLE? Show the CREATE statements
If TABLE specified, only show tables matching
LIKE pattern TABLE.
.separator COL ?ROW? Change the column separator and optionally the row
separator for both the output mode and .import
.shell CMD ARGS... Run CMD ARGS... in a system shell
.show Show the current values for various settings
.stats on|off Turn stats on or off
.system CMD ARGS... Run CMD ARGS... in a system shell
.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
.timer on|off Turn SQL timer on or off
.trace FILE|off Output each SQL statement as it is run
.vfsname ?AUX? Print the name of the VFS stack
.width NUM1 NUM2 ... Set column widths for "column" mode
Negative values right-justify
可以使用对应的指令，但常用的一般有
查看已连接数据库
sqlite>.database
seq name file
--- --------------- ----------------------------------------------------------
0 main /data/data/com.xx.xx/databases/UserDatabase.
表操作
查看当前（或者制定name的数据库）的所有表
sqlite>.tables
User android_metadata room_master_table
指定输出列表内容的格式，column 讲以列的方式展示
sqlite> .mode column
sqlite>
使用 sqlite 数据库语句
sqlite> .mode line
select * from User;
name = KK11161
feature = 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
quality = 9.99787902832031
name = C00020
feature =
quality = 9.97407150268555
name = C00021
feature =
quality = 9.97407150268555
sqlite>
退出 sqlite3
退出 sqlite3 的三种方式，.quit, .exit, 3次 ctrl + c
rk3399_JH:/sdcard # sqlite3 /data/data/com.xx.xx/databases/UserDatabase.db
SQLite version 3.9.2 2015-11-02 18:31:45
Enter ".help" for usage hints.
sqlite> .quit
rk3399_JH:/sdcard # sqlite3 /data/data/com.xx.xx/databases/UserDatabase.db
SQLite version 3.9.2 2015-11-02 18:31:45
Enter ".help" for usage hints.
sqlite> .exit
rk3399_JH:/sdcard # sqlite3 /data/data/com.xx.xx/databases/UserDatabase.db
SQLite version 3.9.2 2015-11-02 18:31:45
Enter ".help" for usage hints.
1|rk3399_JH:/sdcard # sqlite3 /data/data/com.xx.xx/databases/UserDatabase.db
SQLite version 3.9.2 2015-11-02 18:31:45
Enter ".help" for usage hints.
sqlite> ^[[C^[[C
...> ^C^C^C1|rk3399_JH:/sdcard #
1|rk3399_JH:/sdcard #
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