6. Advanced Business Logic
In the preceding chapter, you learned the basics of the Apex language for developing business logic. This chapter extends your knowledge of Apex to reach more features of the Force.com platform. The following topics are covered:
• Aggregate SOQL Queries: Aggregate queries operate on groups of records, summarizing data declaratively at the database level rather than in Apex.
• Additional SOQL Features: SOQL includes features for querying related objects and multi-select picklists.
• Salesforce Object Search Language (SOSL): SOSL is a full-text search language, a complement to SOQL, that allows a single query to search the textual content of many database objects and fields.
• Transaction Processing: Apex includes database ...
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