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Knowledge Base & Tutorials

In-depth technical guides combined with interactive browser sandboxes.

Financial Automation

Databases

SQL

SQL Home

SQL is a standard language for storing, manipulating and retrieving data in databases.

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SQL

SQL Introduction

SQL stands for Structured Query Language.

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SQL

SQL Syntax

Database tables contain rows of data. The most important SQL commands start with keywords like SELECT, UPDATE, DELETE, etc.

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SQL

SQL Select

The SELECT statement is used to select data from a database.

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SQL

SQL Select Distinct

The SELECT DISTINCT statement is used to return only distinct (different) values.

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SQL

SQL Where

The WHERE clause is used to filter records.

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SQL

SQL Order By

The ORDER BY keyword is used to sort the result-set in ascending or descending order.

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SQL

SQL And

The AND operator displays a record if all the conditions separated by AND are TRUE.

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SQL

SQL Or

The OR operator displays a record if any of the conditions separated by OR is TRUE.

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SQL

SQL Not

The NOT operator displays a record if the condition(s) is NOT TRUE.

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SQL

SQL Insert Into

The INSERT INTO statement is used to insert new records in a table.

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SQL

SQL Null Values

A field with a NULL value is a field with no value.

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SQL

SQL Update

The UPDATE statement is used to modify the existing records in a table.

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SQL

SQL Delete

The DELETE statement is used to delete existing records in a table.

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SQL

SQL Select Top

The SELECT TOP clause is used to specify the number of records to return.

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SQL

SQL Aggregate Functions

Aggregate functions calculate a single value from a set of values.

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SQL

SQL Min()

The MIN() function returns the smallest value of the selected column.

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