Basic database file operations in programs

These topics describe basic database file operations, including the read, update, write and delete operations.

• Set a position in the file
  After a file is opened by a job, the system maintains a position in the file for that job. The file position is used in processing the file.
• Read database records
  The iSeries™ system provides a number of ways to read database records.
• Update database records
  The update operation allows you to change an existing database record in a logical or physical file.
• Add database records
  The write operation allows you to add a new record to a physical database file member.
• Delete database records
  The delete operation allows you to delete an existing database record.