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Les outils pour SQLite

• Le shell SQLite en ligne de commandes : command-line shell
• Plugin Firefox : SQLite Manager

SQLite

• Documentation SQLite
  • Datatypes : NULL, INTEGER, REAL, TEXT, BLOB
• Wikipedia : SQLite

SELECT * FROM sqlite_master;
PRAGMA table_info (ma_table);
PRAGMA index_list (ma_table);
PRAGMA index_info (ma_table);
 
PRAGMA database_list;
PRAGMA collation_list;

sqlite> .s

D:\>sqlite3
SQLite version 3.7.15.2 2013-01-09 11:53:05
Enter ".help" for instructions
Enter SQL statements terminated with a ";"

sqlite> -- afficher l'aide
sqlite> .h
.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      Use STRING in place of NULL values
.output FILENAME       Send output to FILENAME
.output stdout         Send output to the screen
.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
.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
.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
.timer ON|OFF          Turn the CPU timer measurement on or off

sqlite> -- lister les bases de données

PRAGMA database_list;
0|main|
 
-- attacher/monter une base de donnée (fichier)
ATTACH 'D:\maBase.sqlite' AS maBase;
 
-- lister les bases de données
PRAGMA database_list;
0|main|
2|maBase|D:\maBase.sqlite

sqlite> -- afficher les entêtes des colonnes
sqlite> .header ON

sqlite> --PRAGMA (les informations sur bases, tables, index)

PRAGMA database_list;
seq|name|file
0|main|
1|temp|
2|maBase|D:\maBase.sqlite

sqlite> -- CREATE TABLE

CREATE TABLE maTable(f_TEXT TEXT, f_NUMERIC NUMERIC, f_INTEGER INTEGER, f_REAL REAL, PRIMARY KEY(f_INTEGER ASC));
CREATE TABLE maTableNull(f1_not_null TEXT, f2_null TEXT NULL);

sqlite> -- schema : consulter les CREATE TABLE statements
sqlite> .s
CREATE TABLE maTable(f_TEXT TEXT, f_NUMERIC NUMERIC, f_INTEGER INTEGER, f_REAL REAL, PRIMARY KEY(f_INTEGER ASC));
CREATE TABLE maTableNull(f1_not_null TEXT, f2_null TEXT NULL);

sqlite> -- lister les tables
sqlite> .tables

-- Lister les tables et leurs définitions
SELECT name FROM sqlite_master WHERE type='table';
SELECT name FROM sqlite_temp_master WHERE type='table'; -- pour lister les tables temporaires
 
-- Lister les éléments de la base (tables, définitions, ...)
SELECT * FROM sqlite_master;
type|name|tbl_name|rootpage|sql
TABLE|maTable|maTable|2|CREATE TABLE maTable(f_TEXT TEXT, f_NUMERIC NUMERIC, f_INTEGER INTEGER, f_REAL REAL, PRIMARY KEY(f_INTEGER ASC))
TABLE|maTableNull|maTableNull|3|CREATE TABLE maTableNull(f1_not_null TEXT, f2_null TEXT NULL)

PRAGMA table_info(maTable);
0|f_TEXT|TEXT|0||0
1|f_NUMERIC|NUMERIC|0||0
2|f_INTEGER|INTEGER|0||1
3|f_REAL|REAL|0||0

BEGIN;
INSERT INTO maTableNull VALUES ("NOT NULL", "NOT NULL");
INSERT INTO maTableNull VALUES ("NOT NULL", NULL);
INSERT INTO maTableNull VALUES (NULL,NULL);
COMMIT;
SELECT * FROM maTableNull;
f1_not_null|f2_null
NOT NULL|NOT NULL
NOT NULL|
|sqlite> SELECT f2_null IS NULL FROM maTableNull;
f2_null IS NULL
0
1
1

ATTACH 'D:\DATA\MaBase1.db' AS b1;
ATTACH 'D:\DATA\MaBase2.db' AS b2;
SELECT * FROM b1.sqlite_master;
 
-- différences entre 2 tables
SELECT * FROM b1.ma_table EXCEPT SELECT * FROM b2.ma_table;
SELECT * FROM b2.ma_table EXCEPT SELECT * FROM b1.ma_table;
 
-- les éléments identiques (intersection) entre 2 tables
SELECT * FROM b2.ma_table INTERSECT SELECT * FROM b1.ma_table;