SQLite简介
SQLite 是一个软件库,实现了自给自足的、无服务器的、零配置的、事务性的 SQL 数据库引擎。SQLite 是在世界上最广泛部署的 SQL 数据库引擎。SQLite 源代码不受版权限制。
SQLite安装
官网下载 SQLite Download Page
新建一个sqlite文件夹,将下载的两个压缩包解压至D:/sqlite,配置环境变量。
配置好环境变量后,打开cmd,输入sqlite3,校验环境变量是否配置成功
SQLite语法
SQLite ANALYZE 语句:
ANALYZE;
or
ANALYZE database_name;
or
ANALYZE database_name.table_name;
SQLite AND/OR 子句:
SELECT column1, column2....columnN
FROM table_name
WHERE CONDITION-1 {AND|OR} CONDITION-2;
SQLite ALTER TABLE 语句:
ALTER TABLE table_name ADD COLUMN column_def...;
SQLite ALTER TABLE 语句(Rename):
ALTER TABLE table_name RENAME TO new_table_name;
SQLite ATTACH DATABASE 语句:
ATTACH DATABASE 'DatabaseName' As 'Alias-Name';
SQLite BEGIN TRANSACTION 语句:
BEGIN;
or
BEGIN EXCLUSIVE TRANSACTION;
SQLite BETWEEN 子句:
SELECT column1, column2....columnN
FROM table_name
WHERE column_name BETWEEN val-1 AND val-2;
SQLite COMMIT 语句:
COMMIT;
SQLite CREATE INDEX 语句:
CREATE INDEX index_name
ON table_name ( column_name COLLATE NOCASE );
SQLite CREATE UNIQUE INDEX 语句:
CREATE UNIQUE INDEX index_name
ON table_name ( column1, column2,...columnN);
SQLite CREATE TABLE 语句:
CREATE TABLE table_name(column1 datatype,column2 datatype,column3 datatype,.....columnN datatype,PRIMARY KEY( one or more columns )
);
SQLite CREATE TRIGGER 语句:
CREATE TRIGGER database_name.trigger_name
BEFORE INSERT ON table_name FOR EACH ROW
BEGIN stmt1; stmt2;....
END;
SQLite CREATE VIEW 语句:
CREATE VIEW database_name.view_name AS
SELECT statement....;
SQLite CREATE VIRTUAL TABLE 语句:
CREATE VIRTUAL TABLE database_name.table_name USING weblog( access.log );
or
CREATE VIRTUAL TABLE database_name.table_name USING fts3( );
SQLite COMMIT TRANSACTION 语句:
COMMIT;
SQLite COUNT 子句:
SELECT COUNT(column_name)
FROM table_name
WHERE CONDITION;
SQLite DELETE 语句:
DELETE FROM table_name
WHERE {CONDITION};
SQLite DETACH DATABASE 语句:
DETACH DATABASE 'Alias-Name';
SQLite DISTINCT 子句:
SELECT DISTINCT column1, column2....columnN
FROM table_name;
SQLite DROP INDEX 语句:
DROP INDEX database_name.index_name;
SQLite DROP TABLE 语句:
DROP TABLE database_name.table_name;
SQLite DROP VIEW 语句:
DROP VIEW view_name;
SQLite DROP TRIGGER 语句:
DROP TRIGGER trigger_name
SQLite EXISTS 子句:
SELECT column1, column2....columnN
FROM table_name
WHERE column_name EXISTS (SELECT * FROM table_name );
SQLite EXPLAIN 语句:
EXPLAIN INSERT statement...;
or
EXPLAIN QUERY PLAN SELECT statement...;
SQLite GLOB 子句:
SELECT column1, column2....columnN
FROM table_name
WHERE column_name GLOB { PATTERN };
SQLite GROUP BY 子句:
SELECT SUM(column_name)
FROM table_name
WHERE CONDITION
GROUP BY column_name;
SQLite HAVING 子句:
SELECT SUM(column_name)
FROM table_name
WHERE CONDITION
GROUP BY column_name
HAVING (arithematic function condition);
SQLite INSERT INTO 语句:
INSERT INTO table_name( column1, column2....columnN)
VALUES ( value1, value2....valueN);
SQLite IN 子句:
SELECT column1, column2....columnN
FROM table_name
WHERE column_name IN (val-1, val-2,...val-N);
SQLite Like 子句:
SELECT column1, column2....columnN
FROM table_name
WHERE column_name LIKE { PATTERN };
SQLite NOT IN 子句:
SELECT column1, column2....columnN
FROM table_name
WHERE column_name NOT IN (val-1, val-2,...val-N);
SQLite ORDER BY 子句:
SELECT column1, column2....columnN
FROM table_name
WHERE CONDITION
ORDER BY column_name {ASC|DESC};
SQLite PRAGMA 语句:
PRAGMA pragma_name;
For example:
PRAGMA page_size;
PRAGMA cache_size = 1024;
PRAGMA table_info(table_name);
SQLite RELEASE SAVEPOINT 语句:
RELEASE savepoint_name;
SQLite REINDEX 语句:
REINDEX collation_name;
REINDEX database_name.index_name;
REINDEX database_name.table_name;
SQLite ROLLBACK 语句:
ROLLBACK;
or
ROLLBACK TO SAVEPOINT savepoint_name;
SQLite SAVEPOINT 语句:
SAVEPOINT savepoint_name;
SQLite SELECT 语句:
SELECT column1, column2....columnN
FROM table_name;
SQLite UPDATE 语句:
UPDATE table_name
SET column1 = value1, column2 = value2....columnN=valueN
[ WHERE CONDITION ];
SQLite VACUUM 语句:
VACUUM;
SQLite WHERE 子句:
SELECT column1, column2....columnN
FROM table_name
WHERE CONDITION;
后续更新sqlite-python。。。