There are many ways to perform the functions you describe:
It would be better for this forum to provide appropriate help if you supply some basic information about the environment you wish to perform said tasks in. The easiest way regardless of platform to do these things is to use the Natural programming and runtime environment in which access to the underlying database is taken care of for you by the DBA and platform system administrators. However, outside of that, if you are using a different programming language, the platform on which Adabas resides and the programming tools you wish to use to manipulate Adabas data with or a description of what you need to do in more detail would be relevant.
Since you will be writing Natural code, you will be using the following statements:
- Include records in tables STORE
- Delete records in tables DELETE
- Read records in tables FIND, READ, HISTOGRAM (doesn't read records, but index (associator) data)
- Update records in tables UPDATE
Assuming you have access to Natural documentation, you should read through these statements.