SQLite之后是称为语法的一组规则和准则。
注意: SQLite不区分大小写,即SYNTAX和语法在SQLite语句中具有相同的含义。
SQLite语句:
所有SQLite语句均以分号(;)结尾。下面列出了所有基本的SQLite语法。
1. ANALYZE声明:
ANALYZE;
OR
ANALYZE dbname;
OR
ANALYZE dbname.tablename;
2. AND / OR条款:
SELECT col1, col2
FROM tablename
WHERE CONDITION-1 {AND|OR} CONDITION-2;
3. ALTER TABLE语句:
ALTER TABLE tablename ADD COLUMN coldef;
OR (Rename)
ALTER TABLE tablename RENAME TO newtablename;
4. ATTACH DATABASE语句:
ATTACH DATABASE 'DbName' As 'AliasName';
5.开始交易声明:
BEGIN;
OR
BEGIN EXCLUSIVE TRANSACTION;
6.条款之间:
SELECT col1, col2
FROM table_name
WHERE colname BETWEEN val1 AND val2;
7.提交交易声明:
COMMIT;
8. CREATE INDEX语句:
CREATE INDEX indexname
ON tablename ( colname COLLATE NOCASE );
UNIQUE INDEX
CREATE UNIQUE INDEX indexname
ON tablename ( col1, col2, ...coln);
9. CREATE TABLE语句:
CREATE TABLE tablename(
col1 datatype,
col2 datatype,
PRIMARY KEY( one or more columns )
);
10. CREATE TRIGGER语句:
CREATE TRIGGER databasename.triggername
BEFORE INSERT ON tablename FOR EACH ROW
BEGIN
stmt1;
stmt2;
END;
11. CREATE VIEW语句:
CREATE VIEW databasename.viewname AS
SELECT statements;
12.创建虚拟表语句:
CREATE VIRTUAL TABLE dbname.tablename USING weblog( access.log );
OR
CREATE VIRTUAL TABLE dbname.tablename USING fts3( );
13. DELETE语句:
DELETE FROM tablename
WHERE {CONDITION};
14. DETACH DATABASE语句:
DETACH DATABASE 'AliasName';
15. DROP声明:
INDEX
DROP INDEX database_name.indexname;
TABLE
DROP TABLE database_name.tablename;
VIEW
DROP INDEX database_name.viewname;
TRIGGER
DROP INDEX database_name.triggername;
16. EXPLAIN声明:
EXPLAIN INSERT statements;
or
EXPLAIN QUERY PLAN SELECT statements;
17.插入INTO语句:
INSERT INTO tablename( col1, col2)
VALUES ( val1, val2);
18. PRAGMA声明:
PRAGMA pragmaname;
19. REINDEX声明:
REINDEX collationname;
REINDEX dbname.indexname;
20. ROLLBACK语句:
ROLLBACK;
OR
ROLLBACK TO SAVEPOINT savepointname;
21. SAVEPOINT语句:
SAVEPOINT savepointname;
22. RELEASE SAVEPOINT语句:
RELEASE savepointname;
23. SELECT语句:
SELECT col1, col2
FROM tablename;
24. UPDATE语句:
UPDATE tablename
SET col1 = val1, col2 = val2
[ WHERE CONDITION ];
25. VACUUM语句:
VACUUM;