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  Sample Cobol code: The Simple, Single File COBOL Program
  Sample Cobol code: The Simple, Single File Report COBOL Program with Record Count or Final Totals
  Sample Cobol code: The Simple, Single File Report COBOL Program with Record Count or Final Totals
  Sample Cobol code: The Sequence Check COBOL Program
  Sample Cobol code: The Record Selection COBOL Program
  Sample Cobol code: The Edit or Validate COBOL Program
  Sample Cobol code: The The One Level Subtotal (Control Break) COBOL Program
  Sample Cobol code: The Three Level Subtotal (Control Break) COBOL Program
  Sample Cobol code: The Sequential File, Batch Update COBOL Program
  Sample Cobol code: The COBOL Sort
  Sample Cobol code: The CASE Structure: COBOL EVALUATE
  Sample Cobol code: Direct Subscripting in COBOL
  Sample Cobol code: The Sequential, or Serial Search in COBOL
  Sample Cobol code: The Binary Search in COBOL
  Sample Cobol code: Loading a Table from a Sequential File in a COBOL program
  Sample Cobol code: The VSAM File Read Sequentially in a COBOL program
  Sample Cobol code: The VSAM KSDS, Read Randomly in a COBOL program
  Sample Cobol code: The VSAM File, Read Randomly in a COBOL program
  Sample Cobol code: VSAM Initial Load in a COBOL program
  Sample Cobol code: VSAM File Maintenance (Add, Change, Delete) in a COBOL program
  Sample Cobol code: VSAM Read Sequentially, with START, in a COBOL program
  Sample Cobol code: Creating a Variable Format File in a COBOL program
  Sample Cobol code: Reading a Variable Format File in a COBOL program
  Sample Cobol code: Creating a Variable Format File with Occurs Depending On in a COBOL program
  Sample Cobol code: COBOL Reading a Variable Format File with Occurs Depending On, in a COBOL program
  Sample Cobol code: COBOL The Table Load with Occurs Depending On
  Sample Cobol/DB2 code: Singleton Select
  Sample Cobol code: logic to compare two sorted input files
  Sample Cobol code: logic to merge two sorted input files into one
  Sample Cobol code: Illustrates how Occurs Depending On (ODO) works
  Manuals on the COBOL programming language.
  Books on Cobol
  Abend Codes from Cobol programs
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           Home   > COBOL


The COBOL programming language has been in use since 1959. It has evolved much since then, to become a language in which you can write very well structured programs.
Its primary advantage is that is uses English-like words as instructions. This is also its main downfall, since computer instructions do not function the same way as the English words that name them.
For example: English "move" means put this object in another place. COBOL "move" means copy the variable to another location.
There are many programs currently in use that were written in COBOL. They continue to function correctly, and will do so as long as the business needs them.
It is extremely expensive and risky to convert a program from one language to another. Instructions just don't work the same way in different languages. Furthermore, during the conversion process, the user can't resist the temptation to add a few new features, to change just a few reports.
As more and more COBOL programmers are sent out to pasture, the need becomes more acute for competent programmers who can maintain COBOL programs, and not break them in the process.
You will find on this site books on COBOL, manuals and tutorials, and working, sample COBOL programs.


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