COMPUTER SCIENCE AND ENGINEERING
SQL
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following is not true about PL/SQL constants and literals?
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A constant holds a value that oncedeclared, does not change in the program.
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The CONSTANT declaration cannot impose the NOT NULLconstraint.
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A constant is declared using the CONSTANTkeyword.
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A CONSTANT declaration requires aninitial value.
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Explanation:
Detailed explanation-1: -Which of the following is not true about PL/SQL constants and literals? A constant holds a value that once declared, does not change in the program. The CONSTANT declaration cannot impose the NOT NULL constraint. A constant is declared using the CONSTANT keyword.
Detailed explanation-2: -Which of the following is not true about the PL/SQL data structure VARRAY? Answer : The elements can of various data types.
Detailed explanation-3: -Which of the following is true about PL/SQL programs? PL/SQL programs can exist with or without any SQL statements.
There is 1 question to complete.