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Thread: Create table statement from DatabaseMetaData

  1. #1
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    Default Create table statement from DatabaseMetaData

    Hi Experts,

    Do you know if it's possible to retrieve a create table statement based on a DatabaseMetaData ? (without looping through columnName / Type)

    The idea is to get the DatabaseMetaData from one db server, and execute the Create Table statements on a different db server.

    One obvious solution would be to loop through each table's column name/type and construct the create table statement manually, but I'd like to know whether this can be automated.

    Thanks in advnace,

    Sid


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    Default Re: Create table statement from DatabaseMetaData

    Yes, but it depends upon how you wish to create the new tables. Can you provide a simple example that demonstrates what you wish to achieve?

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    Default Re: Create table statement from DatabaseMetaData

    Sure.

    We have two databases: Database A and B.

    On database A, there is a table called Table T.

    Using JDBC, we get the DatabaseMetaData for database A , and locate Table T in the meta data.

    Now at this point, I'd like to know how we can get a ready made Create statement for Table T (simply a string) and execute it on database B.

    Hope that was clear.

    Thanks.

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    Default Re: Create table statement from DatabaseMetaData

    I meant more of a precise example showing the schema for Table T, and how you wish to create the table in Database B...for example, do you just wish to Copy the table to database B? Or restructure its data into database B.

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    Default Re: Create table statement from DatabaseMetaData

    No it's simply creating the table with no data manipulation. I don't really care about table contetns.

    example:

    Table T (on database A)
    Column A int
    Column B int

    conn = getConnection(database A);

    DatabaseMetaData dmd = conn.getMetaData();

    String createStatement = dmd.getCreateStatement ( String tableName ); // This is what I am looking for

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    Default Re: Create table statement from DatabaseMetaData

    Ah, I see...take a look at this link. It provides code to copy a database, but can be trimmed to copy a single table schema:How To Copy Database Data Using JDBC. You should note that things like foreign keys, indexes, triggers, views, etc...are not copied in this code.

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    Default Re: Create table statement from DatabaseMetaData

    Thanks for that - appreciate your help.

    Sid

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