English | Size: 149.19 MB
Genre: eLearning
This course will teach you how to improve maintainability of PL/SQL code by using functions. You’ll learn how to create, manage, and remove them. You’ll write many functions in practice, so you’ll see all the peculiarities related to functions.
What you’ll learn
Oracle by no means is one of the most popular database management systems. It’s very mature, reliable and supports a great number of different features. In this course, Oracle Database Program with PL/SQL Exam Number: 1Z0-149 – Creating Functions, you will the difference between procedures and functions and when you should stick to one or another option. First, you’ll explore how to create functions, avoid problems with the no data found error. Next, you’ll discover how to improve the API of functions by using default values and how to improve the calling side by passing argument values by names. Finally, you’ll learn how to remove functions from a database schema. By the end of this course, you’ll have advanced information of how to create functions that return tables, how to improve performance by reducing the memory footprint, and much more.
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