Danke schon mal für die schnelle Antwort, aber genau aus dieser werde ich nicht wirklich schlau.
Open options. The open options used on an SQL cursor. These are specified using the following bits:
<table width="100%"> <tbody><tr> <td valign="top" width="15%">Bit(0)</td> <td valign="top" width="85%">Read</td> </tr> <tr> <td valign="top">Bit(1)</td> <td valign="top">Write</td> </tr> <tr> <td valign="top">Bit(2)</td> <td valign="top">Update</td> </tr> <tr> <td valign="top">Bit(3)</td> <td valign="top">Delete</td> </tr> </tbody></table>
For example, if a cursor is only for FETCH statements, the bit pattern should be '10000000'B or hex 80. If update capability is needed, the bit pattern should be '10100000'B. The syntax in the SQL statement takes precedence over the open options. This means that the FOR UPDATE OF and FOR FETCH ONLY clauses will be honored, even if they do not coincide with the requested open options. The open options are required for functions 2 and 4. They are ignored for other functions.