How do I use variables in SOQL query?

How do I use variables in SOQL query?

Using Apex Variables in SOQL and SOSL Queries

1. The search string in FIND clauses.
2. The filter literals in WHERE clauses.
3. The value of the IN or NOT IN operator in WHERE clauses, allowing filtering on a dynamic set of values.
4. The division names in WITH DIVISION clauses.
5. The numeric value in LIMIT clauses.

How do I use variables in dynamic SOQL?

Variable Binding also prevents SOQL injection natively without the use of the escapeSingleQuotes() string function to cleanse string input. Both cases can still be done by assigning the value(s) to a variable first and then binding against that in the query.

How do I add a string variable in SOQL query?

String field = ‘fieldx__c’; Strign soqlQuery = ‘select Id,’+field+’,Name from object__c’; object__c obj = database. query(soqlQuery);

How do I write a SOQL query in Apex?

To include SOQL queries within your Apex code, wrap the SOQL statement within square brackets and assign the return value to an array of sObjects. For example, the following retrieves all account records with two fields, Name and Phone, and returns an array of Account sObjects.

What is bind variable in SOQL?

A bind variable is an Apex variable that you use in a SOQL query. Use bind variables as placeholders for specific values to be provided later. A bind variable in a query is like a parameter in a method. The bind variable is replaced by a specific value when the query runs.

How do I write a dynamic query in SOQL?

To create a dynamic SOQL query at run time, use the database query method, in one of the following ways.

1. Return a single sObject when the query returns a single record: sObject s = Database.
2. Return a list of sObjects when the query returns more than a single record: List sobjList = Database.

What is SAQL?

First of all, SAQL stands for Salesforce Analytics Query Language, it is what the engine used at the runtime of the query – it is a query language based on Apache Pig.

How do I write a SOQL query in a list?

Basic SOQL Syntax

1. SELECT Name,Phone : This part lists the fields that you would like to retrieve. The fields are specified after the SELECT keyword in a comma-delimited list.
2. FROM Account : This part specifies the standard or custom object that you want to retrieve. In this example, it’s Account.

Which two clauses are required in a SOQL query?

At the foundation of any SOQL query are two clauses: the SELECT clause and the FROM clause.

When to use apex variable in soql query?

We want to inject Apex directly into the SOQL query itself! What we want to do is create a bind variable. A “bind variable” is simply the term for an Apex variable used inside a SOQL query. Salesforce knows you’re using a bind variable when you precede your Apex variable with a colon (:) – here’s an example:

How are bind expressions used in apex parser?

The Apex parser first evaluates the local variable in code context before executing the SOQL or SOSL statement. Bind expressions can be used as: The search string in FIND clauses. The filter literals in WHERE clauses.

When to use a bind expression in soql?

This use of a local code variable within a SOQL or SOSL statement is called a bind. The Apex parser first evaluates the local variable in code context before executing the SOQL or SOSL statement. Bind expressions can be used as:

When to use filter literals in apex clauses?

The filter literals in WHERE clauses. The value of the IN or NOT IN operator in WHERE clauses, allowing filtering on a dynamic set of values. Note that this is of particular use with a list of IDs or Strings, though it works with lists of any type.