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Thread: Why are INSERT SQL statements concatenated?

  1. #1
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    Default Why are INSERT SQL statements concatenated?

    A relatively newbie/wannabe developer here. I've been using various tutorials and some online examples as my current learning tools and have come across something that I'm curious about but haven't really been able to find an answer for.

    Hopefully I can explain it in a manner that makes sense. I've been looking at some basic CRUD tutorials and what I've seen in most tutorials is when a SQL INSERT statement is included it is concatenated. Is there a valid reason the statements are concatenated, instead of more standard INSERT statement as per the below examples? If anyone has any information on the reasoning for this it would be greatly appreciated.

    Example 1 of a concatenated INSERT statement:
    String addUserSQL = "INSERT INTO users " + "VALUES (1, 'First', 'Last', 25)";

    Example 2 of a concatenated INSERT statement:
    String addUserSQL = "INSERT INTO users " + "(id, firstname, lastname, age) VALUES " + "(?, ?, ?, ?);";

    Example of a standard INSERT statement:
    String addUserSQL = "INSERT INTO users (id, firstname, lastname, age) VALUES (1, 'First', 'Last', 25)";

    Thanks in advance.

  2. #2
    Super Moderator Norm's Avatar
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    Default Re: Why are INSERT SQL statements concatenated?

    I do not see any reason for using String concatenation to build a single String from two or more constant content Strings.

    The only reason I can see is to keep the source line short enough to show the whole line without requiring shifting to see the end.
    If you don't understand my answer, don't ignore it, ask a question.

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