MAN page from Other sqlite-3.7.11-1.fu2012.i686.rpm
Section: User Commands (1)
Updated: Mon Apr 15 23:49:17 2002Index
- A command line interface for SQLite version 3
sqlite3is a terminal-based front-end to the SQLite library that can evaluatequeries interactively and display the results in multiple formats.sqlite3can also be used within shell scripts and other applications to providebatch processing features.
To start asqlite3
interactive session, invoke thesqlite3
command and optionally provide the name of a database file. If thedatabase file does not exist, it will be created. If the database filedoes exist, it will be opened.
For example, to create a new database file named "mydata.db", createa table named "memos" and insert a couple of records into that table:
$ sqlite3 mydata.db
SQLite version 3.1.3
Enter ".help" for instructions
sqlite>create table memos(text, priority INTEGER);
sqlite>insert into memos values('deliver project description', 10);
sqlite>insert into memos values('lunch with Christine', 100);
sqlite>select * from memos;
deliver project description|10
lunch with Christine|100
If no database name is supplied, the ATTACH sql command can be usedto attach to existing or create new database files. ATTACH can alsobe used to attach to multiple databases within the same interactivesession. This is useful for migrating data between databases,possibly changing the schema along the way.
Optionally, a SQL statement or set of SQL statements can be supplied asa single argument. Multiple statements should be separated bysemi-colons.
$ sqlite3 -line mydata.db 'select * from memos where priority > 20;'
text = lunch with Christine
priority = 100
The interactive interpreter offers a set of meta-commands that can beused to control the output format, examine the currently attacheddatabase files, or perform administrative operations upon theattached databases (such as rebuilding indices). Meta-commands arealways prefixed with a dot (.).
A list of available meta-commands can be viewed at any time by issuingthe '.help' command. For example:
.databases List names and files of attached databases.dump ?TABLE? ... Dump the database in an SQL text format.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..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 on TABLE.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.schema ?TABLE? Show the CREATE statements.separator STRING Change separator used by output mode and .import.show Show the current values for various settings.tables ?PATTERN? List names of tables matching a LIKE pattern.timeout MS Try opening locked tables for MS milliseconds.width NUM NUM ... Set column widths for "column" modesqlite>
has the following options:
- -init file
- Read and execute commands fromfile, which can contain a mix of SQL statements and meta-commands.
- Print commands before execution.
- Turn headers on or off.
- Query results will be displayed in a table like form, usingwhitespace characters to separate the columns and align theoutput.
- Query results will be output as simple HTML tables.
- Query results will be displayed with one value per line, rowsseparated by a blank line. Designed to be easily parsed byscripts or other programs
- Query results will be displayed with the separator (|, by default)character between each field value. The default.
- -separator separator
- Set output field separator. Default is '|'.
- -nullvalue string
- Set string used to represent NULL values. Default is ''(empty string).
- Show SQLite version.
- Show help on options and exit.
reads an initialization file to set the configuration of theinteractive environment. Throughout initialization, any previouslyspecified setting can be overridden. The sequence of initialization isas follows:
o The default configuration is established as follows:
mode = LISTseparator = "|"main prompt = "sqlite> "continue prompt = " ...> "
o If the file ~/.sqlitercexists, it is processed first.can be found in the user's home directory, it isread and processed. It should generally only contain meta-commands.
o If the -init option is present, the specified file is processed.
o All other command line options are processed.
The sqlite-doc package
This manual page was originally written by Andreas Rottmann<rottyAATTdebian.org>, for the Debian GNU/Linux system (but may be usedby others). It was subsequently revised by Bill Bumgarner <bbumAATTmac.com>.
- SQLITE META-COMMANDS
- INIT FILE
- SEE ALSO
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