1.

The string function that returns the index of the first occurrence of substring is _____________(a) INSERT()(b) INSTR()(c) INSTRING()(d) INFSTR()

Answer» Correct choice is (b) INSTR()

Explanation: The string function ‘INSTR()’ is used to return the index of the first occurrence of the substring. The function ‘INSERT()’ is used to insert a substring at the specified position up to the specified number of characters.


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