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CREATE FUNCTION "RELEASE_MANAGER"."GET_V_EXT" (SSpkg_version IN PACKAGE_VERSIONS.pkg_version%TYPE) RETURN VARCHAR2 IS

/* ---------------------------------------------------------------------------
    Version: 3.0.0
   --------------------------------------------------------------------------- */

    SSV_EXT PACKAGE_VERSIONS.V_EXT%TYPE;
    lastDot NUMBER;

BEGIN
    lastDot := INSTR (SSpkg_version, '.', -1);

    IF ( lastDot > 0 ) AND ( lastDot != LENGTH(SSpkg_version) )
    THEN
        -- YES dot separator found --
        SSV_EXT := SUBSTR (SSpkg_version, lastDot, LENGTH(SSpkg_version)-lastDot+1);

        IF IS_VERSION_EXTENSION ( SSV_EXT )
        THEN
            RETURN SSV_EXT;
        ELSE
            RETURN NULL;
        END IF;

    ELSE
        -- NO dot separator found --
        RETURN NULL;
    END IF;

END GET_V_EXT;
/