Invitation to Database Processing |
Contents
Nature of Data and Information | 7 |
File Terminology | 29 |
File Design Considerations | 41 |
Copyright | |
15 other sections not shown
Common terms and phrases
active data values ADABAS added record Available Head Pointer Base Management Systems blocking factor bytes child node COBOL CODASYL commands component contains Data Base Management Data Description Language DATA HEAD POINTER Data Manipulation Language data processing data record data-items database processing database record DBTG database model deleted example Figure file organization FINAL GRADE LINK given data Head Pointer value hierarchical database IDMS Index Area indexed sequential file initial key field linear search LINK column LINK field values LINK value logical record magnetic tape major n-tuple NUMBER FINAL GRADE one-to-many one-way linked list overflow area parent node physical record primary key value Prime Data Area prime number punched cards record type root node row three schema secondary key segment set of data simply STUDENT NUMBER FINAL STUDENT-NUMBER subschema TAIL pointer technique terminology to-be-added track tree data structure tree structure