Slaesforce FAQ

how to build dynamic soql query in salesforce

by Mrs. Martina Olson IV Published 2 years ago Updated 2 years ago
image

To create a dynamic SOQL query at run time, use the Database.query method, in one of the following ways. Return a single sObject when the query returns a single record: sObject s = Database.query(string_limit_1); Return a list of sObjects when the query returns more than a single record:

Full Answer

What is dynamic soql in Salesforce?

Dynamic SOQL. Dynamic SOQL refers to the creation of a SOQL string at run time with Apex code. Dynamic SOQL enables you to create more flexible applications. For example, you can create a search based on input from an end user or update records with varying field names. To create a dynamic SOQL query at run time,...

How to create a dynamic soql query at runtime?

To create a dynamic SOQL query at runtime, use the database query method, in one of the following ways. Return a single s Object when the query returns a single record: Hope it will be helpful. Please mark it as best answer if the information is informative.so that question is removed from an unanswered question and appear as a proper solution.

Should I use a dynamic or static SQL query?

You should not use a dynamic query unless you must. In this case, since you are doing nothing fancy, just use a static query: There are two problems you have, the first of which is much easier to solve. The equality operator for SOQL is =, not equals. As an alternative to 2, you can use merge syntax.

Does Salesforce store the field name and namespace in separate system fields?

I know Salesforce stores the field name and the namespce in separate system fields. Show activity on this post. Case 1). If the Organization contains Namespace. For ex.

image

How do I create a dynamic query in SOQL?

Dynamic SOQL refers to the creation of a SOQL string at run time with Apex code. Dynamic SOQL enables you to create more flexible applications. For example, you can create a search based on input from an end user or update records with varying field names. To create a dynamic SOQL query at run time, use the Database.

How do I increase SOQL query performance?

The performance of the SOQL query improves when two or more filters used in the WHERE clause meet the mentioned conditions. The selectivity threshold is 10% of the records for the first million records and less than 5% of the records after the first million records, up to a maximum of 333,000 records.

How do I create a SOQL query in Salesforce?

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 static and dynamic SOQL in Salesforce?

Static SOQL is one which you write in square brackets. It is good to use when you didn't have any dynamic changes in the soql query. Dynamic SOQL refers to the creation of a SOQL string at runtime with Apex code.

How do I query more than 50000 records in SOQL?

You cannot retrieve more than 50,000 records your SOQL calls in a single context. However, with Batch Apex your logic will be processed in chunks of anywhere from 1 to 200 records in a batch. You'd need to modify your business logic to take the batching into account if necessary.

How do you solve too many SOQL queries 101 in Test class?

Resolve the "Too many SOQL queries: 101" error To fix the issue, change your code so that the number of SOQL fired is less than 100. If you need to change the context, you can use @future annotation which will run the code asynchronously.

Is SOSL faster than SOQL?

Performance Considerations Both SOQL WHERE filters and SOSL search queries can specify text you should look for. When a given search can use either language, SOSL is generally faster than SOQL if the search expression uses a CONTAINS term.

How many possible data types can a SOQL query return?

When used in Apex code, a SOQL query can return three type of result: a list of sObjects, a single sObject, or of Aggregate Results.

What are the types of SOQL statements in Salesforce?

There are 2 types of SOQL Statements: Static SOQL. Dynamic SOQL.

How do you escape a single quote in SOQL?

The escape character for SOQL is the backslash (\) character.

What is dynamic apex in Salesforce?

What is Dynamic Apex? As per the Salesforce Documentation, Dynamic Apex enables developers to create more flexible applications. In other words, we can say that using dynamic apex, you can write Generic Code that can be re-used again and again with multiple sObjects.

What is SOSL in Salesforce?

Salesforce Object Search Language (SOSL) is a Salesforce search language that is used to perform text searches in records. Use SOSL to search fields across multiple standard and custom object records in Salesforce. SOSL is similar to Apache Lucene.

Dynamic SOQL Considerations

You can use simple bind variables in dynamic SOQL query strings. The following is allowed:

SOQL Injection

SOQL injection is a technique by which a user causes your application to execute database methods you did not intend by passing SOQL statements into your code. This can occur in Apex code whenever your application relies on end user input to construct a dynamic SOQL statement and you do not handle the input properly.

image
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 1 2 3 4 5 6 7 8 9