Unit 1, Section 4: Data Independence

Related Media

Unit 1, Section 1: DL/I Environment and Fixed…

duration 12 minutes 59 seconds

Unit 1, Section 1: DL/I Environment and Fixed…

Unit 1, Section 1: DL/I Environment and Fixed Records

From ZTPS - Z SW video management May 3rd, 2023

Unit 1, Section 2: IMS Database Hierarchy

duration 22 minutes 29 seconds

Unit 1, Section 2: IMS Database Hierarchy

From ZTPS - Z SW video management May 3rd, 2023

Unit 1, Section 5: Database Description (DBD)

duration 16 minutes 43 seconds

Unit 1, Section 5: Database Description (DBD)

From ZTPS - Z SW video management May 3rd, 2023

Unit 1, Section 6: DBD FIELD Statements

duration 23 minutes 19 seconds

Unit 1, Section 6: DBD FIELD Statements

From ZTPS - Z SW video management May 3rd, 2023

Unit 1, Section 7: Program Specification Block…

duration 14 minutes 32 seconds

Unit 1, Section 7: Program Specification Block…

Unit 1, Section 7: Program Specification Block (PSB)

From ZTPS - Z SW video management May 3rd, 2023

Unit 1, Section 8: Application Program View and…

duration 10 minutes 9 seconds

Unit 1, Section 8: Application Program View and…

Unit 1, Section 8: Application Program View and Linkage Editor

From ZTPS - Z SW video management May 3rd, 2023

Unit 1, Section 9: Database Recovery and…

duration 17 minutes 42 seconds

Unit 1, Section 9: Database Recovery and…

Unit 1, Section 9: Database Recovery and Application Control Blocks

From ZTPS - Z SW video management May 3rd, 2023

Unit 1, Section 10: Initializing the Batch System…

duration 17 minutes 18 seconds

Unit 1, Section 10: Initializing the Batch System…

Unit 1, Section 10: Initializing the Batch System and z/OS Access Methods

From ZTPS - Z SW video management May 3rd, 2023

Unit 2, Section 1: DL/I Call Processing

duration 15 minutes 51 seconds

Unit 2, Section 1: DL/I Call Processing

From ZTPS - Z SW video management May 3rd, 2023

Unit 2, Section 2: DL/I Call Parameters and…

duration 19 minutes 22 seconds

Unit 2, Section 2: DL/I Call Parameters and…

Unit 2, Section 2: DL/I Call Parameters and Function Codes

From ZTPS - Z SW video management May 3rd, 2023

Details

Details

Details

To search for an exact match, please use Quotation Marks. Example: “computer”

Back

This video describes how IMS and its hierarchic structures provide a data independence capability by separating the logical and physical definition of data from the program. The logical definition, or the programmer's view of the databases, is provided via a control block called the program specification block (PSB). The physical definition of the database is provided by another control block called the database description (DBD).