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SQLite is followed by unique set of rules and guidelines called Syntax. This chapter lists all the basic SQLite Syntax.
Case Sensitivity
The important point to be noted is that SQLite is case insensitive, i.e. the clauses GLOB and glob have the same meaning in SQLite statements.
Comments
SQLite comments are extra notes, which you can add in your SQLite code to increase its readability and they can appear anywhere; whitespace can occur, including inside expressions and in the middle of other SQL statements but they cannot be nested.
SQL comments begin with two consecutive “-” characters (ASCII 0x2d) and extend up to and including the next newline character (ASCII 0x0a) or until the end of input, whichever comes first.
You can also use C-style comments, which begin with “/*” and extend up to and including the next “*/” character pair or until the end of input, whichever comes first. C-style comments can span multiple lines.
sqlite> .help -- This is a single line comment
SQLite Statements
All the SQLite statements start with any of the keywords like SELECT, INSERT, UPDATE, DELETE, ALTER, DROP, etc., and all the statements end with a semicolon (;).
SQLite ANALYZE Statement
ANALYZE; or ANALYZE database_name; or ANALYZE database_name.table_name;
SQLite AND/OR Clause
SELECT column1, column2....columnN FROM table_name WHERE CONDITION-1 {AND|OR} CONDITION-2;
SQLite ALTER TABLE Statement
ALTER TABLE table_name ADD COLUMN column_def...;
SQLite ALTER TABLE Statement (Rename)
ALTER TABLE table_name RENAME TO new_table_name;
SQLite ATTACH DATABASE Statement
ATTACH DATABASE ''DatabaseName'' As ''Alias-Name'';
SQLite BEGIN TRANSACTION Statement
BEGIN; or BEGIN EXCLUSIVE TRANSACTION;
SQLite BETWEEN Clause
SELECT column1, column2....columnN FROM table_name WHERE column_name BETWEEN val-1 AND val-2;
SQLite COMMIT Statement
COMMIT;
SQLite CREATE INDEX Statement
CREATE INDEX index_name ON table_name ( column_name COLLATE NOCASE );
SQLite CREATE UNIQUE INDEX Statement
CREATE UNIQUE INDEX index_name ON table_name ( column1, column2,...columnN);
SQLite CREATE TABLE Statement
CREATE TABLE table_name( column1 datatype, column2 datatype, column3 datatype, ..... columnN datatype, PRIMARY KEY( one or more columns ) );
SQLite CREATE TRIGGER Statement
CREATE TRIGGER database_name.trigger_name BEFORE INSERT ON table_name FOR EACH ROW BEGIN stmt1; stmt2; .... END;
SQLite CREATE VIEW Statement
CREATE VIEW database_name.view_name AS SELECT statement....;
SQLite CREATE VIRTUAL TABLE Statement
CREATE VIRTUAL TABLE database_name.table_name USING weblog( access.log ); or CREATE VIRTUAL TABLE database_name.table_name USING fts3( );
SQLite COMMIT TRANSACTION Statement
COMMIT;
SQLite COUNT Clause
SELECT COUNT(column_name) FROM table_name WHERE CONDITION;
SQLite DELETE Statement
DELETE FROM table_name WHERE {CONDITION};
SQLite DETACH DATABASE Statement
DETACH DATABASE ''Alias-Name'';
SQLite DISTINCT Clause
SELECT DISTINCT column1, column2....columnN FROM table_name;
SQLite DROP INDEX Statement
DROP INDEX database_name.index_name;
SQLite DROP TABLE Statement
DROP TABLE database_name.table_name;
SQLite DROP VIEW Statement
DROP INDEX database_name.view_name;
SQLite DROP TRIGGER Statement
DROP INDEX database_name.trigger_name;
SQLite EXISTS Clause
SELECT column1, column2....columnN FROM table_name WHERE column_name EXISTS (SELECT * FROM table_name );
SQLite EXPLAIN Statement
EXPLAIN INSERT statement...; or EXPLAIN QUERY PLAN SELECT statement...;
SQLite GLOB Clause
SELECT column1, column2....columnN FROM table_name WHERE column_name GLOB { PATTERN };
SQLite GROUP BY Clause
SELECT SUM(column_name) FROM table_name WHERE CONDITION GROUP BY column_name;
SQLite HAVING Clause
SELECT SUM(column_name) FROM table_name WHERE CONDITION GROUP BY column_name HAVING (arithematic function condition);
SQLite INSERT INTO Statement
INSERT INTO table_name( column1, column2....columnN) VALUES ( value1, value2....valueN);
SQLite IN Clause
SELECT column1, column2....columnN FROM table_name WHERE column_name IN (val-1, val-2,...val-N);
SQLite Like Clause
SELECT column1, column2....columnN FROM table_name WHERE column_name LIKE { PATTERN };
SQLite NOT IN Clause
SELECT column1, column2....columnN FROM table_name WHERE column_name NOT IN (val-1, val-2,...val-N);
SQLite ORDER BY Clause
SELECT column1, column2....columnN FROM table_name WHERE CONDITION ORDER BY column_name {ASC|DESC};
SQLite PRAGMA Statement
PRAGMA pragma_name; For example: PRAGMA page_size; PRAGMA cache_size = 1024; PRAGMA table_info(table_name);
SQLite RELEASE SAVEPOINT Statement
RELEASE savepoint_name;
SQLite REINDEX Statement
REINDEX collation_name; REINDEX database_name.index_name; REINDEX database_name.table_name;
SQLite ROLLBACK Statement
ROLLBACK; or ROLLBACK TO SAVEPOINT savepoint_name;
SQLite SAVEPOINT Statement
SAVEPOINT savepoint_name;
SQLite SELECT Statement
SELECT column1, column2....columnN FROM table_name;
SQLite UPDATE Statement
UPDATE table_name SET column1 = value1, column2 = value2....columnN=valueN [ WHERE CONDITION ];
SQLite VACUUM Statement
VACUUM;
SQLite WHERE Clause
SELECT column1, column2....columnN FROM table_name WHERE CONDITION;
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