The filter could be a range, single value or sub query. We now have the ability to build dynamic queries which will retrieve all the information for a object. I want: A list of Contact objects containing only contacts who are CampaignMembers of a set of campaigns; and they should have the data from that Campaign member easily accessible. For example, you can create a search based on input from an end user, or update records with varying field names on different objects. In this article, we discuss subqueries in the WHERE clause. The IN operator is used if you want to compare a value with multiple values to ensure the retrieved records are accurate. Where merge syntax totally fails, it always gives you the correct results with your query formation. This is such a wonderful technique that you can utilize it with your purely dynamic queries even at runtime. Basically when WHERE clause in SOQL statement is used WHERE clause is followed by some comparison operators and Logical Operators like IN operator, NOT IN operator, INCLUDES operator, EXCLUDES Operator. SOQL is so basic I almost don’t need to explain these examples! It’s full form translates to Salesforce Object Query Language.We have an idea about directly using query in APEX by writing the query in between ‘[‘ and ‘]’. Preface: this post is part of the SOQL: A Beginner’s Guide series. Dynamic SOQL in Apex. Salesforce: AccountContactRelation SOQL returning null with dynamic filter valuesHelpful? SELECT firstname, lastname FROM Contact WHERE firstname != null SELECT * FROM tableName WHERE condition; HERE "SELECT * FROM tableName" is the standard SELECT statement "WHERE" is the keyword that restricts our select query result set and "condition" is the filter to be applied on the results. SELECT * FROM EMPLOYEE WHERE MY_BONUS IS NULL The result of above query will be who does not get any bonus. All the examples for this lesson are based on Microsoft SQL Server Management Studio and the AdventureWorks2012 database. Here is the output of our dynamic SOQL calls for when I give it an Contact ID: Dynamic SOQL/SOSL is nothing but the creation of a SOQL/ SOSL string at runtime with an Apex script. suppose i left the firstname it should show as null in Email content ( dynamically displaying values ) Multiple SQL Where Clause Conditions – Like >, >=, <, <=, AND and OR . I will included the full source for this at the bottom of this post. In the above code you can see that how I used multiple subjects to use within SOQL with the help of String.format & String.join methods. Bam. Let us see an example on WHERE clause. This is the third in a series of articles about subqueries.. I'm having trouble getting the results I want from a Salesforce/Apex/SOQL query. Any Salesforce developer must be familiar with SOQL queries. The WHERE clause behaves in two different ways, depending on the version when handling null values in a parent field for a relationship query. You May Also Like: Oracle Database 12c SQL Certified Associate 1Z0-071; 3. In a … Dynamic SOQL enables you to create more flexible applications means developer can pass parameters dynamically. i am using this inside email content section ..i want to show the values as dynamic from the above query (also includes if field name left blank it should show as null value). SOQL as we all know is the Salesforce’s version of SQL. However there is a limitation to the method i.e. How the order of precedence during the execution of SQL refer to the below chart Other articles discuss their uses in other clauses. The WHERE clause: SELECT […] For this example I have built a Visualforce Page which displays the dynamic values. 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