Apex-SOQL

Introduction

Apex-SOQL is a query language used in Salesforce Apex programming language. It stands for Salesforce Object Query Language. Apex-SOQL is specifically designed to query records in Salesforce database using Salesforce Object Query Language syntax.

Features

1. Simplified Querying: Apex-SOQL provides a simplified way of querying Salesforce database records, allowing developers to retrieve specific sets of data efficiently.

2. Join Queries: Apex-SOQL supports JOIN statements, enabling developers to combine data from multiple Salesforce objects in a single query.

3. Filtering and Sorting: Apex-SOQL provides various options for filtering and sorting queried data. Developers can use WHERE clauses to filter records based on specific criteria and ORDER BY clauses to sort the data.

4. Aggregating Data: Apex-SOQL supports aggregate functions like SUM, COUNT, AVG, MIN, and MAX to perform calculations on the queried data.

5. Relationship Queries: With Apex-SOQL, developers can query related objects using parent-child or lookup relationships. This allows retrieving data from both source and related objects in a single query.

6. Subqueries: Apex-SOQL supports subqueries, which are queries nested within the main query. Subqueries allow developers to retrieve data based on intermediate results.

7. Data Manipulation: Apex-SOQL not only allows querying records but also supports data manipulation operations like create, update, and delete records in Salesforce database.

Example Code

Here's an example of a simple Apex-SOQL query:

List<Account> accounts = [SELECT Id, Name, Industry FROM Account WHERE Industry = 'Technology'];

This query retrieves the Id, Name, and Industry fields of all Accounts with the Industry field set to 'Technology'. The results are stored in the 'accounts' variable as a List of Account objects.

Conclusion

Apex-SOQL is a powerful query language that simplifies data retrieval and manipulation in Salesforce Apex. It provides various features like join queries, filtering, sorting, aggregating data, relationship queries, and subqueries. By using Apex-SOQL, developers can efficiently work with Salesforce database records and perform complex data operations.