xref: /trunk/main/offapi/com/sun/star/sdbc/XStatement.idl (revision ffd38472365e95f6a578737bc9a5eb0fac624a86)

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 * to you under the Apache License, Version 2.0 (the
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#ifndef __com_sun_star_sdbc_XStatement_idl__
#define __com_sun_star_sdbc_XStatement_idl__

#ifndef __com_sun_star_uno_XInterface_idl__
#include <com/sun/star/uno/XInterface.idl>
#endif

#ifndef __com_sun_star_sdbc_SQLException_idl__
#include <com/sun/star/sdbc/SQLException.idl>
#endif

 module com {  module sun {  module star {  module sdbc {

 published interface XConnection;
 published interface XResultSet;


/** is used for executing a static SQL statement and obtaining the results
    produced by it.



    <p>
    Only one ResultSet per Statement can be open at any point in
    time; therefore, if the reading of one ResultSet is interleaved
    with the reading of another, each must have been generated by
    different Statements. All statement
    <code>execute</code>
    methods implicitly
    close a statement's current ResultSet if an open one exists.
    </p>
 */
published interface XStatement: com::sun::star::uno::XInterface
{

    /** executes a SQL statement that returns a single ResultSet.
        @param sql
            the SQL statement which should be executed
        @returns
            a ResultSet that contains the data produced by the query; never <NULL/>
        @throws SQLException
            if a database access error occurs.
     */
    XResultSet executeQuery([in]string sql) raises (SQLException);
    //-------------------------------------------------------------------------

    /** executes an SQL INSERT, UPDATE, or DELETE statement. In addition,
        SQL statements that return nothing, such as SQL DDL statements,
        can be executed.

        @param sql
            a SQL INSERT, UPDATE or DELETE statement or a SQL statement that returns nothing
        @returns
            either the row count for INSERT, UPDATE or DELETE or 0 for SQL statements that return nothing
        @throws SQLException
            if a database access error occurs.
     */
    long executeUpdate([in]string sql) raises (SQLException);
    //-------------------------------------------------------------------------

    /** executes a SQL statement that may return multiple results.


        <p>
        Under some (uncommon) situations a single SQL statement may return
        multiple result sets and/or update counts. Normally you can ignore
        this unless you are (1) executing a stored procedure that you know may
        return multiple results or (2) you are dynamically executing an
        unknown SQL string. The navigation through multiple results is covered by
        <type scope="com::sun::star::sdbc">XMultipleResults</type>.
        </p>
        <p>
        The
        <code>execute</code>
        method executes a SQL statement and indicates
        the form of the first result. You can then use
        <member scope="com::sun::star::sdbc">XStatement::getResultSet()</member>
        or
        <member scope="com::sun::star::sdbc">XStatement::getUpdateCount()</member>
        to retrieve the result, and
        <member scope="com::sun::star::sdbc">XStatement::getMoreResults()</member>
        to move to any subsequent result(s).
        </p>

        @param sql
            any SQL statement
        @returns
            <TRUE/> if the next result is a ResultSet; <FALSE/> if it is an update count or there are no more results
        @throws SQLException
            if a database access error occurs.
     */
    boolean execute([in]string sql) raises (SQLException);
    //-------------------------------------------------------------------------

    /** returns the
        <type scope="com::sun::star::sdbc">Connection</type>
        object
        that produced this
        <code>Statement</code>
        object.
        @returns
            the connection that produced this statement

        @throws SQLException
            if a database access error occurs.
     */
    XConnection getConnection() raises (SQLException);
};

//=============================================================================

}; }; }; };

/*===========================================================================
===========================================================================*/
#endif