How to check if database/table exists in MYSQL

I am writing a program which accesses databases in MYSQL, is there any way to check if the databases exists on the MYSQL server and if not create one && to check if a table exists and create one of if it does not

OK, found out that as special permissions needed to create databases I assume it cannot be done via my app but how about Tables

Similar Messages

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    Hi,
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    regards,
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    In Horst Keller's blog /people/horst.keller/blog/2005/05/27/abap-geek-10--everything-functions-150-but-how my issue is talked about :
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  • How to check whether a table exists in database

    test9997 is table already made in database with 3 columns :1st-varchar,2nd-number,3rd-number
    declare
    var1 varchar2(20);
    var2 number(20);
    var3 number(20);
    begin
    plvar1 :='this is again pl/sql';
    plvar2 := 12;
    plvar3 := 13;
    IF (???? condition for existence of table say test1111??????) then
    create table test1111(
    var1 varchar2(20);
    var2 number(20);
    var3 number(20);
    insert into test1111(plvar1,plvar2,plvar3);
    else
    insert into test1111(plvar1,plvar2,plvar3);;
    end if;
    end;
    in the above code i want to check existence of a table and insertion or updation will be based on it after creation if it doesnt exist.
    how to do it
    please help asap

    You're in the wrong forum (this one is for issues with the SQL Developer tool). You'll get more answers in the SQL And PL/SQL forum.
    Have fun,
    K.

  • How to check if the table exists in teh database

    Hi,
    I am using MS Acess and how do i check using the query if the table already exist in the db?
    What is the exact query. Can any one help me.
    Thanks
    Deepti

    This will do it for you and print out the results using JDOM. - %
    package database;
    import org.jdom.Document;
    import org.jdom.Element;
    import org.jdom.output.XMLOutputter;
    import java.sql.Connection;
    import java.sql.DatabaseMetaData;
    import java.sql.DriverManager;
    import java.sql.ResultSet;
    import java.sql.ResultSetMetaData;
    import java.sql.SQLException;
    import java.sql.Statement;
    import java.util.ArrayList;
    import java.util.List;
    public class TableLister
       public static final String DRIVER = "sun.jdbc.odbc.JdbcOdbcDriver";
       public static final String DATABASE = "jdbc:odbc:DRIVER={Microsoft Access Driver (*.mdb)};DBQ=C:\\Documents and Settings\\Michael\\My Documents\\Projects\\Java\\Forum\\data\\DataConnection.mdb";
       public static final String USERNAME = "admin";
       public static final String PASSWORD = "";
       public static void main(String[] args)
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          ResultSet tables = null;
          String driver = "";
          try
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             String url = ((args.length > 1) ? args[1] : DATABASE);
             String username = ((args.length > 2) ? args[2] : USERNAME);
             String password = ((args.length > 3) ? args[3] : PASSWORD);
             Class.forName(driver);
             conn = DriverManager.getConnection(url, username, password);
             DatabaseMetaData meta = conn.getMetaData();
             // Bring back ALL tables and views, including SYSTEM tables.
             tables = meta.getTables(null, null, null, null);
             ResultSetMetaData rsmd = tables.getMetaData();
             int numColumns = rsmd.getColumnCount();
             List columnNames = new ArrayList();
             for (int j = 0; j < numColumns; ++j)
                columnNames.add(rsmd.getColumnName(j + 1));
             Element root = new Element("tables");
             int tableCount = 0;
             while (tables.next())
                Element table = new Element("table");
                table.setAttribute("id", Integer.toString(++tableCount));
                for (int j = 0; j < numColumns; ++j)
                   Element column = new Element((String) columnNames.get(j));
                   column.setText(tables.getString((String) columnNames.get(j)));
                   table.addContent(column);
                root.addContent(table);
             conn.close();
             Document doc = new Document(root);
             XMLOutputter outputter = new XMLOutputter("   ", true);
             System.out.println(outputter.outputString(doc));
          catch (ClassNotFoundException e)
             System.err.println("Couldn't load JDBC driver class " + driver);
             e.printStackTrace();
          catch (SQLException e)
             System.err.println("SQL state: " + e.getSQLState());
             System.err.println("SQL error: " + e.getErrorCode());
             e.printStackTrace();
          catch (Exception e)
             e.printStackTrace();
          finally
             close(tables);
             close(conn);
       public static void close(Connection c)
          try
             if (c != null)
                c.close();
          catch (SQLException e)
             e.printStackTrace();
       public static void close(Statement stmt)
          try
             if (stmt != null)
                stmt.close();
          catch (SQLException e)
             e.printStackTrace();
       public static void close(ResultSet result)
          try
             if (result != null)
                result.close();
          catch (SQLException e)
             e.printStackTrace();
    }

  • How can I check whether or not an database table exists?

    Hi,
    I am new to ABAP programming. And now I want to write an function that check whether an table exists in the dictionary.
    It request the table name was given by the user input. So I have to check it dynamically.
    Please give me some guide if you know about that.
    Thanks.

    Hi,
    All the table names exist in DD02l table.
    Fetch data from DD02l table by passing selectin screen parameter .
    REPORT ysdn_new .
    PARAMETERS: p_tab LIKE dd02l-tabname.
    DATA: v_tab LIKE p_tab.
    SELECT SINGLE tabname INTO v_tab FROM dd02l WHERE tabname = p_tab.
    WRITE v_tab.
    If ypu want to fetch from TADIR table only means you have to pass selection screen parameter in place of obj_name and TABL for OBJECT field.
    SELECT SINGLE tabname INTO v_tab
    FROM TADIR
    WHERE obj_name = p_tab
       AND    object = 'TABL'.
    This is other way of getting table name by passing selection screen parameter
    this will work.
    Please reward points if helpful...
    Regds
    Sivaparvathi

  • How do I check if a table exists

    I have some embedded SQL statements to create tables and indexes
    in a database. These tables may or may not already be there. I
    would like to be able to drop the table(s) first, then create
    them. Unfortunately, an error is generated if I drop a table
    that does not exist.
    Can someone send me the proper SQL command to check if a table
    exists before dropping it in Oracle?
    TIA
    Eric
    null

    I have some embedded SQL statements to create tables and indexes
    in a database. These tables may or may not already be there. I
    would like to be able to drop the table(s) first, then create
    them. Unfortunately, an error is generated if I drop a table
    that does not exist.
    Can someone send me the proper SQL command to check if a table
    exists before dropping it in Oracle?
    TIA
    Eric
    null

  • How to  check whether any table(s) required to shrink on database

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    Venkat wrote:
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  • Please help me how to check a material does existed group code in system (w

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    Karenloria,
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  • In ecatt - how to check at database level using ABAP

    Hi,
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    say,for example I want to check a particular sales order is invoiced or not ,at the database level and if it is invoiced I have stop proceeding to invoicing of that sales order number.
    Could anybody suggest on this with an example?
    thanks.

    Hi,
    you can use the command GETTAB to access single db records.
    Full specified or partitial specified keys can be use at GETTAB. It will return always only one record, also if a couple could match your selection.
    For more advanced scenarios you can also use eCATTs Inline ABAP. In a block between the commands ABAP. ENDABAP. you can code ABAP statements, e.g. SELECT ... INTO TABLE ...
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  • JavaScript: How to check if a file exists.

    Hello Everybody,
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    if in xtags we find that some varibles are not having the right data coming from xml -> database tables so how can we find out the names of database table behind it .
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