How do I query distinct values in SOQL?
You can use SOQL COUNT_DISTINCT() keyword. This will just count how many of your items values are distinct. This keyword is part of Aggregate functions. This function is useful to know about, but doesn’t fit the OP requirement as they wanted to know the actual values, not how many of them there are.
Is there distinct in SOQL?
Have you ever had the need to retrieve distinct values from your database table in Salesforce and been stuck as SOQL does not provide the ability to use DISTINCT in its queries like other query languages? Use the following query to mimic the use of the distinct keyword like in other query languages.
What is SOQL query in Salesforce?
What Is a SOQL Query? SOQL stands for Salesforce Object Query Language. You can use SOQL to read information stored in your org’s database. SOQL is syntactically similar to SQL (Structured Query Language). You can write and execute a SOQL query in Apex code or in the Developer Console’s Query Editor.
What is 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.
How do you prevent duplicate records in SOQL?
There are three SOQL clauses that are important here.
- GROUP BY. Groups a set of records by the values in the field you are passing. An optional clause in SOQL queries.
- HAVING. An optional clause in SOQL queries.
- COUNT(FieldName) Another optional clause in SOQL queries.
How do I use alias in SOQL query?
Alias notation in SOQL statements are used to distinguish different object used in a single SOQL Statement. To establish the alias, first we should identify the object and then specify the alias. In Salesforce SOQL, we have some reserved keywords which are not used as alias names.
How do I find unique fields in Salesforce?
Go to Setup-Customize-Accounts and click on fields. Scroll down to the Account Custom Fields and Relationships. The Data Type column of the table will have (Unique) or (External Id) mentioned next to the fields.
What is difference between SOQL and SOSL?
SOSL & SOQL. The chart below describes the differences….Difference between SOSL and SOQL search types.
| SOQL | SOSL | |
|---|---|---|
| Search Focus: | Accuracy. Gives full set of results that match criteria. | Relevance & Speed. Similar to Google Search. Weightage placed on recently viewed records. |
| Search Scope | Can search 1 object at a time. | Can search multiple objects at a time. |
How do I use SOQL in Salesforce?
Execute a SOQL Query or SOSL Search
- Enter a SOQL query or SOSL search in the Query Editor panel.
- If you want to query tooling entities instead of data entities, select Use Tooling API.
- Click Execute.
- Warning If you rerun a query, unsaved changes in the Query Results grid are lost.
How do I stop SOQL injection in Salesforce?
How to prevent SOQL Injection?
- Avoid using dynamic SOQL where possible, instead use static queries and binding variables.
- If you must use dynamic SOQL, use the escapeSingleQuotes method to sanitize user-supplied input.
What is database Querylocator in Salesforce?
Database.getQueryLocator in Salesforce returns a Query Locator that runs your selected SOQL query returning list that can be iterated over in batch apex or used for displaying large sets in VF.
How do you prevent duplicate records in Salesforce Apex?
Preventing duplicate records in Salesforce based on a single field can be achieved using a Set that can store the values of that specific field from all existing records and compare it with the list of new records that are going to be inserted.