Multiple choice technology databases

Concatenation operator is

  1. +

  2. -

  3. ||

  4. *
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In standard SQL, the double vertical bar || is the operator used to concatenate two or more strings together. The +, -, and * symbols are arithmetic operators used for addition, subtraction, and multiplication, respectively, and cannot be used for string concatenation.

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