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❮ Previous SQL Editor Next ❯ SQL Select Distinct The SQL DISTINCT command is used with the SELECT keyword to retrieve only distinct or unique data. In a table, there may be a chance to exist a duplicate value and sometimes we want to retrieve only unique values. In such scenarios, SQL SELECT DISTINCT statement […]

❮ Previous SQL Editor Next ❯ SQL Select Statement The SELECT statement is the most commonly used command in Structured Query Language. It is used to access the records from one or more database tables and views. It also retrieves the selected data that follow the conditions we want. By using this command, we can

❮ Previous SQL Editor Next ❯ SQL Table Table is a collection of data, organized in terms of rows and columns. Table is the simple form of data storage. A table is also considered a convenient representation of relations. Note: A table has a specified number of columns, but can have any number of rows.

❮ Previous SQL Editor Next ❯ SQL Database What is Database?A database is an organized collection of data so that it can be easily accessed and managed. You can organize data into tables, rows, and columns, and index it to make it easier to find relevant information. Database handlers create a database in such a

SQL Data Types Data types are used to represent the nature of the data that can be stored in the database table. For example, in a particular column of a table, if we want to store a string type of data then we will have to declare a string data type of this column. Data

❮ Previous SQL Editor Next ❯ SQL Syntax SQL follows a unique set of rules and guidelines called syntax. Here, we are providing all the basic SQL syntax. – SQL is not case-sensitive. Generally, SQL keywords are written in uppercase.– SQL statements are dependent on text lines. We can place a single SQL statement on