2019.03.23 - 16 new exercises added to COBOL section:
- Good Coding Practices - 11 exercises
- Working with DB2 - Part III - Transactional Processing - 4 exercises
- CALL statement - 1 exercise
2018.11.01 - Mainframe Playground was featured in the official IBM Systems Magazine:
Link
2018.09.28 - 40 new exercises related to SQL query performance:
DB2 & SQL:
- Loading a test database into DB2 - 5 exercises
- Concurrency & Locking - 6 exercises
- DB2 Performance - Basics - 11 exercises
- DB2 Performance - Indexes - 5 exercises
- DB2 Performance - Predicates - 5 exercises
COBOL:
- Working with DB2 – Part II – Locks & Performance - 8 exercises
Also, a few corrections in "Intrinsic functions" and "Working with DB2 – Part I – Basics" Assignments.
2018.05.31 - 7 new Assignments were added and 2 old one updated. 55 exercises in total:
- Structures and tables - 1 exercise
- Working with sequential files - 3 exercises
- CALL statement - 9 exercises
- Error handling - 6 exercises
- Standard functions - 11 exercises
- SORT & MERGE statements - 6 exercises
- Intrinsic functions - 7 exercises
- Working with DB2 - Part I - Basics - 8 exercises
- Using copybooks - 4 exercises
PayPal Donate button added.
2018.03.13 - New category "COBOL" with 7 new assignments. 53 exercises in total:
- Executing COBOL programs - 8 exercises
- PERFORM & GO TO - 5 exercises
- Structures and tables - 10 exercises
- PICTURE - 8 exercises
- USAGE - 5 exercises
- Working with Sequential files - 8 exercises
- Working with Indexed and Relative files - 9 exercises
2018.01.01 - New category "DB2 & SQL" added with 3 big assignments. 27 exercises in total:
- Setting up a database - 7 exercises
- SQL Basics - 11 exercieses
- Automatizing data load - 9 exercises
2017.11.09 - Four new tools added:
- RACF Command Extractor
- Batch Workload Reporter
- XLS & CSV Creator
- UNITOOLS
2017.08.09 - 3 Tools and 6 new assignments with 34 exercises:
Tools:
- SYSLOG Message Extractor
- Spool Usage Monitor (Health Check)
- COND to IF converter
REXX:
- Executing REXX scripts - 5 exercises
SMF & RMF:
- Extracting batch workload statistics - 3 exercises
System Programming:
- Installing a basic STC - 9 exercises
- Setting up Health Checker - 7 exercises
- Working with Health Checks - 5 exercises
- Writing REXX checks - 5 exercises
2017.01.26 - New category "Utilities" added with 69 exercises:
- IEBGENER - 5 exercises
- IEBCOPY - 4 exercises
- IEHLIST - 3 exercises
- IEBDG - 2 exercises
- IEBUPDTE - 2 exercises
- IEBCOMPR - 2 exercises
- IEHPROGM - 2 exercises
- ISRSUPC - 4 exercises
- IKJEFT* - 4 exercises
- SDSF - 5 exercises
- BPXBATCH - 5 exercises
- IDCAMS - 8 exercises
- DFSORT - 9 exercises
- ADRDSSU - 11 exercises
- Executing Utilities without JCL - 3 exercises
2016.11.25 - 23 new exercises added in JES2 category & few small corrections.
- Managing JES2 - 8 exercises
- PROCLIB concatenation - 5 exercises
- Spool - 6 exercises
- Checkpoint Data Set - 4 exercises
2016.10.06 - Tab with links added & some small updates.
2016.06.04 - Workaround for 591737 Firefox bug applied. Infographic added.
2016.06.04 - 39 new exercises added.
System Programming:
- EREP Facility - 9 exercises
- SYSLOG & OPERLOG - 9 exercises
TWS:
- Using Periods and Run Cycles - 6 exercises
- Creating Special Resources - 6 exercises
- Managing Application Execution - 9 exercises
2016.04.20 - 17 new exercises in "SMF & RMF" section. 7 new exercises in "IPL & PARMLIB".
2016.01.26 - Website start. 133 exercises available in following categories: JCL(95), TWS(27), SDSF(6), RMF(5), PARMLIBs(3), System Programming(3).
- Risk 1 - it can be done on any test system. This tasks do not interfere with any system function.
- Risk 2 - it can be done on any test system only if you have approval from System Administrator. This tasks either change some less critical system setting or are simply risky because of their complexity or possibility of mistake.
- Risk 3 - it can be done only on the system where you are Administrator. This tasks either change some very important system setting or are very risky to do.