Oracle Database 23ai simplifies SQL by making FROM DUAL optional Starting with Oracle Database 23ai (23c), simple SELECT statements no longer require the DUAL table. Queries such as function calls or expressions can be written without referencing DUAL explicitly. This enhancement improves readability and reduces unnecessary syntax, while the database engine continues to handle execution internally in the same way. Although a small change, it contributes to cleaner SQL and faster query writing—es
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