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  1. Which mode tells the server to recognize || as the string concatenation operator?
    1. ORS_AS_CONCAT
    2. LOGIC_OR_AS_CONCAT
    3. PIPES_AS_CONCAT
    4. DOUBLE_PIPE_AS_CONCAT
    5. None of these
Correct Option: C

‘PIPES_AS_CONCAT’, one of the many MySQL server mode values stored in the system variable would direct the server to treat the pipe characters as the standard SQL string concatenation operator rather than the logical or. The rest mode values are invalid.


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