What is the where clause in soql query to history object?

What is the where clause in soql query to history object?

I am querying in the Workbench with SOQL. I need to query a history object to a custom field, but I want to see changes only to a certain field. What is the syntax to say WHERE Field = MyTargetField ?

When to use parent to child query in soql?

Parent to Child Queries (Inner Query) in SOQL An Inner Query is normally used when you want to retrieve the related child record for a particular parent record or set of parent records. For example, to pull the Contacts related to a particular Account, you can use the following SOQL query:

How to query the Salesforce database using soql?

Knowledge of the Salesforce Developer Console and Query Editor. You’ll be using the Developer Console to run these queries. Click Your Name. Select Developer Console. Click the Gear Icon. Select Developer Console.

How are inner and outer joins used in soql?

In SOQL statements, Inner and Outer Joins are used to join related objects like parent object and child objects to retrieve all related fields from base objects including the records of non refer related object. let us see an example :- SELECT NAME, ACCOUNT__r.NAME FROM PROJ__C.

How is soql used in Salesforce Object Query Language?

– SOQL (Salesforce object Query Language) retrieves the records from the database by using “SELECT” keyword. – By using SOQL, we can know in which object or fields the data resides. – We can retrieve the data from single object or from multiple objects that are related to each other.

How to write a cross object soql query?

That works fine, but the Account.TAM_CSM_Assignment__c is a User ID from which I can get the User.Name and User.Email of that user via: SELECT User.Name, User.Email from User where Id = ”

How is a nested soql query treated like a field?

The nested query is treated like another field. That’s why there is a comma after the AnnualRevenue field. We use the plural version “Contacts” in the nested SOQL query. If you need to find the keyword for a custom relationship, find the lookup or master-detail field and look here:

How to query parent to child in soql?

Query parent-to-child, which are almost always one-to-many. Specify these relationships using a subquery (enclosed in parentheses), where the initial member of the FROM clause in the subquery is related to the initial member of the outer query FROM clause.

How to get product2 values in soql query?

Using the same query, you can get the values on Product2 by specifying the product family (which points to the field’s data): Any query (including subqueries) can include a WHERE clause, which applies to the object in the FROM clause of the current query.

How to do a relationship query in SOSL?

Specify these relationships directly in the SELECT, FROM, or WHERE clauses using the dot (.) operator. This query returns the ID and name for only the contacts whose related account industry is media, and for each contact returned, the account name.

How to work with SOSL and soql query results?

Working with SOQL and SOSL Query Results. 1 Double rev = [SELECT AnnualRevenue FROM Account. 2 WHERE Name = ‘Acme’] [0].AnnualRevenue; 3 // When only one result is returned in a SOQL query, it is not necessary. 4 // to include the list’s index. 5 Double rev2 = [SELECT AnnualRevenue FROM Account. 6 WHERE Name = ‘Acme’ LIMIT 1].AnnualRevenue;

What causes runtime error in soql and SOSL?

SOQL and SOSL queries only return data for sObject fields that are selected in the original query. If you try to access a field that was not selected in the SOQL or SOSL query (other than ID), you receive a runtime error, even if the field contains a value in the database. The following code example causes a runtime error:

How to do a soql query in apex?

For example, this code retrieves an sObject list from the database with a SOQL query, accesses the first account record in the list, and then dereferences the record’s AnnualRevenue field: // to include the list’s index.