LDAP Searching - Setting the SCOPE Parameter
by Jeff Hunter, Sr. Database Administrator
The SCOPE setting is the starting point of an LDAP search and the depth from the base DN to which the search should occur. There are three options (values) that can be assigned to the SCOPE paramter:
This value is used to indicate searching only the entry at the base DN, resulting in only that entry being returned (keeping in mind that it also has to meet the search filter criteria!).
If you are using the Netscape LDAP SDK, you can use the constant: LDAPConnection.SCOPE_BASE.
This value is used to indicate searching all entries one level under the base DN - but not including the base DN and not including any entries under that one level under the base DN.
If you are using the Netscape LDAP SDK, you can use the constant: LDAPConnection.SCOPE_ONE.
This value is used to indicate searching of all entries at all levels under and including the specified base DN.
If you are using the Netscape LDAP SDK, you can use the constant: LDAPConnection.SCOPE_SUB.
Figure 1: Scope Options
Jeffrey Hunter is an Oracle Certified Professional, Java Development Certified Professional, Author, and an Oracle ACE. Jeff currently works as a Senior Database Administrator for The DBA Zone, Inc. located in Pittsburgh, Pennsylvania. His work includes advanced performance tuning, Java and PL/SQL programming, developing high availability solutions, capacity planning, database security, and physical / logical database design in a UNIX / Linux server environment. Jeff's other interests include mathematical encryption theory, tutoring advanced mathematics, programming language processors (compilers and interpreters) in Java and C, LDAP, writing web-based database administration tools, and of course Linux. He has been a Sr. Database Administrator and Software Engineer for over 20 years and maintains his own website site at: http://www.iDevelopment.info. Jeff graduated from Stanislaus State University in Turlock, California, with a Bachelor's degree in Computer Science and Mathematics.
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Last modified on
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