tables and associative arrays formerly known as index by tables use similar The Open Group Certification subscript notation, but they have different characteristics when it comes to persistence and ease of parameter passing. Nested tables can be stored The Open Group Certification it exam in a database column, but associative arrays cannot. Nested tables are appropriate for important data relationships that must be stored persistently. Associative The Open Group Certification arrays are appropriate for relatively small lookup tables where the collection can be constructed in memory each time a procedure is called or a package is initialized. They are good for collecting information whose volume is unknown beforehand, because there is no fixed limit on their size. Their index values are more flexible, because associative array subscripts can be negative, can be nonsequential, and can use string values instead of numbers when appropriate. PL SQL automatically converts between host arrays and associative arrays that use numeric key values. The most efficient way to pass collections to and from the database server is to use anonymous PL SQL blocks to bulk bind input and output host arrays to associative arrays. Choosing Between Nested Tables and Varra.

Exam CodeExam NameVendorCertifications
OG0-081 TOGAF 8 Certification for Practitioners The Open Group The Open Group Certification
OG0-091 TOGAF 9 Part 1 The Open Group The Open Group Certification
OG0-092 TOGAF 9 Part 2 The Open Group The Open Group Certification
OG0-093 TOGAF 9 Combined Part 1 and Part 2 The Open Group The Open Group Certification
OG0-9AB TOGAF 8 - 9 Advanced Bridge The Open Group The Open Group Certification

Our Management Team

Jeff Davidson, P.E.

Jeff Davidson, P.E.

Founder and President
Josh Fruth

Josh Fruth

Vice President
Ryan White, P.E.

Ryan White, P.E.

Engineering Production Manager
Fred Hood, AICP

Fred Hood, AICP

Senior Planner
Andrew Rath, P.E.

Andrew Rath, P.E.

Project Manager

The staff at Davidson Engineering are professionals who excel in their area of expertise and strongly believe in a ‘hands-on’ approach to their projects and dealing with clients.