Chapter 3: Notes on Interstage Operation
6) Fetching a Line from a Text Type and a Table Containing an Image Type
With regard to fetching a line from a text type and a table containing an image type; in BMP, specify the row of the text type and the image type such that they are placed last in the selected list.
−Example 1: Specify the line of the text type and the image type so that they are placed in the COL3.
SELECT COL1, COL2, COL3 FROM SCM.TBL WHERE COL1=?
−Example 2: When handling multiple lines of the text type and the image type, specify the line
of the text type and the image type so that they are placed in the COL2 and COL3 respectively. SELECT COL1, COL2, COL3 FROM SCM.TBL WHERE COL1=?
In CMP, when operating the text type and a table containing an image type, specify the row of the text type and the image type last in the CMF mapping definition.
Note on Class Names
When installing multiple EJB applications on the same machine, if there is a class (such as HOME interface, Remote interface, Enterprise Bean class, and primary key class) that has the same name but different implementation, the incorrect operation occur. Therefore, when developing EJB applications, determine a package name so that the class name does not get duplicated.
Starting EJB Applications
In DB access environment definition of the customize tool, if the same port number of the existing product is specified by mistake, much time is required for starting and an error occurs. Specify a correct port number and restart.
About the EJB Application Process
In the EJB application, do not control the signal by JNI (Java Native Interface). When the signal is controlled, it does not operate correctly.