Q1 A new developer, who is new to PL/SQL, has just been hired to assist in your development group. Explain the differences between scalar, record and table variables to the new developer.
Q2PL/SQL includes three types of variable, including scalar, record, and table variables. All three of these serve a different purpose depending on how much data you want to store. For instance, if you want to only hold a singular value, a scalar variable should be assigned. Frequently, you only want to start something like the quantity of product number 4 in stock. A scalar variable is the most suitable for this value.
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