What is SQL and it types?

Question

What is SQL? SQL stands for Structured Query Language, as it is the special purpose domain-specific language for querying data in Relational Database Management System (RDBMS). Microsoft SQL Server, MySQL, Oracle, etc. use SQL for querying with slight syntax differences. 6 июл. 2020 г.

What are the four types of SQL?

These SQL commands are mainly categorized into four categories as:DDL – Data Definition Language.DQl – Data Query Language.DML – Data Manipulation Language.DCL – Data Control Language.

What are the two types of SQL?

MySQL has consistently been the most popular version of SQL in Stack Overflow questions. Second in line is Microsoft SQL Server (including T-SQL, the name of Microsoft's dialect of SQL), which remains a consistently more popular tag than PostgreSQL and SQLite.

What are the different data types in SQL?

Categories of SQL Server data typesExact numeric: bit, tinyint, smallint, int, bigint, decimal, numeric, money and smallmoney.Approximate numeric: Read and float.Date and time: date, DateTime, datetime2, datetimeoffset, smalldatetime, time.Character strings:char, varchar, text.

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