data base 2nd

with the confidence of knowing that it is accessing up to date and exclusive information.



Some early DBMS=s consisted of:
 Condor 3
dBaseIII
Knowledgeman
Omnifile
Please
Power-Base
R-Base 4000
Condor 3, dBaseIII, and Omnifile will be examined more closely.

Condor 3
Is a relational database management system that evolved in the microcomputer environment since 1977.  Condor provides multi-file, menu-driven relational capabilities and a flexible command language.  By using a word processor, due to the absence of a text editor, frequently used commands can automated.
Condor 3 is an application development tool for multiple-file databases.  Although it lacks some of the capabilities like procedure repetition, it makes up for it with its ease to use and quick decent speed.
Condor 3 utilizes the advantages of menu-driven design.  Its portability enables it to import and export data files in five different ASCII formats.  Defining file structures is a relatively straightforward method by typing the field names and their length, the main part of designing the structure is about complete.  Condor uses six data types:

alphabetic
alphanumeric
C. numeric
C. decimal numeric
C. Julian date
C. dollar
Once the fields have been designed, data entry is as easy as pressing enter and inputting the respective values to the appropriate fields and like the newer databases, Condor too can use the Update, Delete, Insert, and Backspace commands.  Accessing data is done by creating an index.  The index can be used to perform sorts and arithmetic.

dBaseIII
DbaseIII is a relational DBMS which was partially built on dbaseII.  Like Condor 3, dbaseIII is menu-driven and has its menus built in several levels.  One of the problems discovered, was that higher level commands were not included in all menu levels.  That is, dBaseIII is limited to only basic commands and anything above that is not supported.
Many of the basic capabilities are easy to use, but like Condor, dBaseIII has inconsistencies and inefficiency.  The keys used to move and select items in specific menus are not always consistent through out.  If you mark an item to be selected from a list, once it=s marked it can not be