1.结构化查询语言(SQL)：
SQL代表结构化查询语言。 SQL可以访问，创建和管理数据库。 SQL已成为美国国家标准协会的标准。
2. SQLite：
SQLite是提供关系数据库管理系统的软件。 SQLite在设置，数据库管理和所需资源方面都是轻量级的。 SQLite具有诸如独立，无服务器，零配置等功能。
SQL和SQLite之间的区别：
| SQL | SQLite |
|---|---|
| SQL is Structured Query Language used to query Relational Database System. It is written in C language. | SQLite is an Relational Database Management System which is written in ANSI-C. |
| SQL is standard which specifies how relational schema is created, data is inserted or updated in relations, transactions are started and stopped, etc. | SQLite is file-based. It is different from other SQL databases because unlike most other SQL databases, SQLite does not have separate server process. |
| Main components of SQL are Data Definition Language(DDL), Data Manipulation Language(DML), Data Control Language(DCL). | SQLite supports many features of SQL and has high performance but does not support stored procedures. |
| SQL is Structured Query Language which is used with databases like MySQL, Oracle, Microsoft SQL Server, IBM DB2, etc. | SQLite is portable database resource. It could get an extension in whatever programming language used to access that database. |
| A conventional SQL database needs to be running as service like OracleDB to connect to and provide lot of functionalities. | SQLite database system does not provide such functionalities. |
| SQL is query language which is used by other SQL databases. It is not database itself. | SQLite is relational database management system itself which uses SQL. |