What is a Varray? What are the similarities and differences between a Varray and a PL/SQL Table?
What will be an ideal response?
A varray is another composite data type or collection type in PL/SQL. Varray stands for variable-size array. They are single-dimensional bounded collections of elements with the same data type. They retain their ordering and subscripts when stored in and retrieved from a database table. They are similar to PL/SQL table, and each element in a varray is assigned a subscript/index starting with 1.
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Draw an expression tree for the expression (9 + 4) * 5 + (4 - (6 - 3)).
What will be an ideal response?
Which of the following is a suggested decision to make when you plan a workbook?
A. determine how to manipulate the worksheets B. determine the necessary functions and formulas needed C. determine what to add to the requirements document D. determine whether to use the Format Painter button
To edit a header, double-click in the header section of the document and make the edits.
Answer the following statement true (T) or false (F)
An email administrator is tasked to setup a Linux mail server. One of the requirements is to close all ports except SSH, HTTPS, SMTP, POP3, and IMAP4. Which of the following commands should be used to see which ports are currently open on the mail server? (Select TWO).
A. lsof B. netstat C. ipconfig D. traceroute E. ping F. dig