Pre-Con Ed: Introduction to CA Datacom Key Concepts and Facilities Part I

World®’16

IntroductiontoCADatacomKeyConceptsandFacilities– PartIDaleRussellDirectorSoftwareEngineeringandProductOwnerCATechnologies

MFX68EA

MAINFRAMEANDWORKLOADAUTOMATION

2 ©2016CA.ALLRIGHTSRESERVED.@CAWORLD#CAWORLD

Abstract

Thisisamulti-partsessiontargetedtowardsthenewCADatacomDBAorsystemsprogrammer.ThesessioncoversthekeyconceptsandfacilitiesforimplementingandmanagingtheCADatacomenvironment.

DaleRussell

DirectorSoftwareEngineeringandProductOwner

CATechnologies


Module1:Introduction


IntroductiontoCADatacomKeyConceptsandFacilities

§ CADatacom/DBDatabaseAdministration– 7hoursplanned,2sessions,12modules

§ Audience– DatabaseAdministratorsandthoseresponsibleforsupportingCA

Datacom/DB

§ Prerequisites– Knowledgeofz/OSJCL,macroassemblies,basicoperatingsystem

concepts– FamiliaritywiththeDBAjobfunctionorsomeexperienceasaDBA

Introduction


IntroductoryDBAEducation

§ Duringthemorningsession,youwill:– LearnkeyCADatacom/DBdatabaseconcepts– LearnwhataMulti-UserFacility(MUF)is– LearntheroleoftheDatadictionary

§ Duringtheafternoonsession,youwill:– LearntheprimaryDBUTLTYfunctions– Learnwhatroutineoperationsshouldbeperformed– Learnhowloggingandrecoverywork– LearnhowtoreportaproblemtoCASupport

Modules



§ Duringtheafternoon(contd.):– LearnhowbatchandonlineprogramsaccessMUF– LearnwhataMUFplexis– LearnwhatCADatacomCICSServicesdoes– LearnhowtomonitorandmanageonlineURTs

Modules- continued



§ CASupportOnline(CSO)loginpage:– https://support.ca.com

§ CADatacomVersion15.0Documentation:– https://docops.ca.com/ca-datacom/15-0/en

§ CADatacomUserCommunitypage:– https://communities.ca.com/community/ca-datacom-cadre

ImportantDatacomLinks


Module2:CADatacom/DBKeyDatabaseConcepts


ModuleObjectives

DEFINERELATIONALDATABASECONCEPTS

NAMETHECOMPONENTSOFCADATACOM/DB

EXPLAINTHESTRUCTUREOFADATABASE

1

2

3


RelationalDatabaseConcepts

§ Databasesconsistsoftables

§ Tablesconsistofrows

§ Rowscontaincolumns

§ Rowsofonetablecanberelatedtorowsinanothertable

§ Rulesexistforcontrollingtherelatingofrows


RelationalDatabaseConceptscontinued

Emp. No. Emp. Name Emp. State125 Able Texas126 Baker Oklahoma127 Charlie Indiana

Pay Date Emp. No. Pay Amount 12/15/03 125 187.75 12/31/03 125 127.50 12/15/03 127 15.01

—x

§ Indexesarecreatedtoincreaseperformance

§ Rowsarerelatedbycolumnvalues

TablesrelatedbyEMPLOYEE_NO


RelationalDatabaseConcepts

§ Viewsoftable(s)canbecreated– Segregateslogicalviewofdatafromphysicaldata– Insulatesapplicationsfromphysicaldatachanges– Dataappearsonlyonce– Standardsandintegritiescanbeenforced

continued


RelationalDatabaseConceptscontinued


TheCADatacomProductFamily– CoreProducts

§ CADatacom/DB§ CADatacomDatadictionary§ CADataquery forCADatacom§ CADatacomSQL§ CADatacomCICSServices§ CADatacomPresspack§ CADatacomFastRestore


TheCADatacomProductFamily– AdditionalProducts

§ CADatacomServer§ CAIdealforCADatacom§ CAIPC(Inter-ProductComponents)§ CADatacomVSAMTransparency§ CADatacomDL1Transparency§ CADatacomTOTALTransparency§ CADatacomResourceAnalyzer


OtherRelatedCAProducts

§ CACommonServices(CCS)§ CASYSVIEW


SystemArchitecture

CXX

PXX

LXX

RXXDirectory

StatisticsandDiagnosticsArea RecoveryArea

LogAreaFXX

ForcedLogArea

Index Area

IXXIXX IXX

DataAreas DATA-DICTandotherSystemAreas

DataAreas


Directory

§ Containsstructuralandstatusinformationoneverydatabaseintheenvironment

§ OneperDMBSenvironment

CXX


LogArea

§ Temporaryholderoflogrecords§ Basicallymaintenancetransactionbeforeandafterimages§ Providestransactionbackout andMUFrestartcapabilities

LXX


ForcedLogArea

§ Containslogging-relatedinformationthathasbeenforcedfromtheLogArea(LXX)

§ DoesnotneedtobeaslargeastheLXXbutmusthavethesameBLKSIZE

§ UsedbyMUFtofacilitaterestartprocessing

FXX


RecoveryArea

§ Permanentholderofcommittedlogrecords§ UsedwithLogArea(s)toprovideforwardandbackward

recoverycapabilities

RXX


StatisticsandDiagnosticsArea

§ ContainssystemstatisticsandmasterlistdumpsifMUFSYSOUTstartupoptionnotpresent

§ Providesinformationformonitoringandtuning

CADatacom/DB

PXX


IndexArea

§ Providesfastaccesstodatacontainedwithinadatabase§ Compoundrelationalindexstructure§ OnelogicalIXXperdatabase§ Canbesplitinto

multiplephysicalInndatasets

IXX


CompoundRelationalIndex

§ BalancedB-treestructure§ High-levelcontainskeyrangesandprovidesaccessibilityto

low-levelindex§ Low-levelcontainskeyvaluesanddatarecordaddresses§ Self-reorganizing


DataandIndexArea

§ Eachresidesinitsownphysicaldataset

§ Nologicalsizerestriction

§ Inz/OScanoccupyupto59dasd volumes

§ Upto240dataareasperdatabase

AREA


ReservedDatabaseIDs

§ Thefollowingarecurrentlyinuse– 000 Non-CADatacom/DBresources– 001 HumanResourceSampleTables– 002 DatadictionaryDatabase– 003 CADataquery SystemTables– 004,005 AccountingFacility– 006 CompoundBooleanSelectionFacility– 010 OrderEntrySampleSystem– 012-013 CADatacomResourceAnalyzer

Thefirst20databaseIDsineach1000increment


ReservedDatabaseIDs

§ Thefollowingarecurrentlyinuse– 014 CADatacomTransparencies– 015 DDD-DATABASE– 016 SQLDefaultDatabase– 017 SQLTTM(TemporaryTableManager)– 018 CAIdealSampleDatabase– 1000 CADatacom/DBSystemTables– 1001 SQLDemonstrationDatabase– 1006 CBSHeuristicsDatabase– 1007 HistoryDatabase

continued


ReservedDatabaseIDs

§ Thefollowingarecurrentlyinuse– 1008-1017 Reserved– 1018 AUTOSTAT– 1019-1020 AUTOSCOPE– 2000-2008 Reserved– 2009 CA_CDC_BASE(ChangeDataCapture)– 2010-2020 Reserved– 3000-3020 Reserved– 4000-4020 Reserved– 5000 Reserved

continued


DatabaseStructureComponents


DatabaseStructureComponents

§ EachdatabasemustfirstbedefinedtoCADatadictionary(DBID002)§ AllcomponentshaveanexternalDatadictionaryname§ ExternalDatadictionarynamesarefrom1to32characterslong§ Inaddition,areas,tables,keysandelementshaveaninternalnameused

byDatacom/DB§ InternalDatacomareaandtablenamesmustbe3characterslong§ Internalkeyandelementnamescanbefrom1to5characterslong§ Nologicalcolumnorelementlimit(butmaximumrowsizeis32720)

continued


DatabaseStructureComponents– Database

§ Groupoflogicallyrelatedtables§ 5000databasesperDBMSenvironment§ 240tablesperdatabase(1,200,000tables)


DatabaseStructureComponents– Area(s)

§ Physicalstorageofdatatables§ Transparenttotheuser§ Physicallycontainoneormoretables§ Upto240areas

perdatabase


DatabaseStructureComponents– Table(s)


DatabaseStructureComponents– Element

§ Unitofdatatransfer§ 1- to5-byteDATACOM-NAME§ Composedofcontiguouscolumnswithinarow§ Upto255Elementspertable


DatabaseStructureComponents– Key

§ Oneormorecolumns,contiguous/non-contiguous,anyorder,ascending/descending(max180bytes)

§ Orderedbasedonbinaryvalue(default)oractualnumericcollatingsequence

§ Optimizesdataaccess,canbesharedacrosstables§ 1- to5-characterDATACOM-NAME


DatabaseStructureComponents– MasterKey

§ Ensuresdataintegrity§ Canbeuniqueandnon-updatable§ SingleMasterKeyrequiredforeachtable


DatabaseStructureComponents– NativeKey

§ Shouldreflectphysicalorderofdatamostoftenusedbysequentialprocesses

§ SingleNativeKeyrequiredforeachtable§ CanbethesameastheMasterKey§ CanbeusedtoreorganizedataviaDBUTLTYBackup


DatabaseStructureComponents– UniqueKey

§ CanbetheNativeand/orMasterKey§ Anynumberofkeysmaybeunique


DatabaseStructureComponents– Non-UniqueKey

§ CanbetheNativeKey§ Duplicatekeyvaluesareallowed


DatabaseStructureComponents– DirectAccessKey

§ CannotbetheMasterorNativeKey§ Mustbeanumeric4-bytebinaryunsignedcolumn§ MusthaveUNIQUEattributedefined§ Tablemustbeuncompressed,singletablearea,DSOP=0§ Onlysupportedforretrievalbyread-by-key-exactcommands§ Norealindexexists,specialconditionsforADD,UPD,DEL


DatabaseStructureComponents– Dataviews

§ Logicalviewofdata§ Composedofoneormoreelements§ UsedbyCAIdeal


ModuleSummary

§ Youshouldnowbeableto—Definerelationaldatabaseconcepts—NamethecomponentsofCADatacom/DB—Explainthestructureofadatabase


Module3:TheMulti-UserFacility(MUF)


Agenda

STATETHEPURPOSEOFTHEMULTI-USERFACILITY

LEARNMULTI-USERSTARTUPOPTIONS

ISSUEMULTI-USERCONSOLECOMMANDS

INTERPRETMULTI-USERMESSAGES

1

2

3

4


Multi-UserFacility(MUF)

§ Centralizeddatabasemanagementandcontrol

§ Sharedresources

§ Multiple(thousands)ofsimultaneousread/updateusers


Multi-UserFacility(MUF)

§ Allowsmanyuserstobeservicedconcurrently

continued


PCCallUsage

§ ProgramCall(PC)methodologyreplacedpriorversions’useofSupervisorCall(SVC)

§ PCmodulesinstalledusingCACommonServicesCAIRIMprogram

§ DBSYSIDmacro‘TARGET_MUF_LIST=‘parameteridentifiesMUF

§ Valueusedonstartupoption‘MUF’mustbeanasterisk‘*’ormatchthe‘TARGET_MUF_LIST=‘value


ProgramtoMUFConnectivity

§ DBSYSIDmacroassembledandlinkeditedtocreatemoduleDBSIDPR

§ DBSIDPRloadedbyMUFatstartup

§ DBSIDPRloadedbyapplicationsatUserRequirementTable(URT)open

§ IdentifiesaspecificMUFwithinaprocessingimageusingTARGET_MUF_LISTvalue

§ SupportforCrossCouplingFacility(XCF)access

§ SupportforCommonCommunicationInterface(CCI)accessusingTCPIP– z/OSMUFplex,z/OSSysplex


PCCallAccessWithinSingleImage


Syxplex Communication

§ ViaXCF


Non-Syxplex Communication

§ ViaCCI


ShadowMUFplex (ModeS)


DataSharingMUFplex (ModeAorB)


DBSYSIDMacro– ModeA,BorS

TITLE'DATACOM/DB- DBSIDPRFORINDIVIDUALLOGICALMUF'

DBSYSID X

CONSOLE_MINUTES=2,EVERY2MINUTES,PLUSONDEMAND X

DELAY68=2, X

DELAY85=1, X

DELAY_DBUTLTY_SECURITY=NO,EXTERNALSECUREYES/NO X

SIMPLIFY_MODE=NO,YES/NO X

TARGET_MUF_LIST=(mufa,mufb), X

CONNECT_ALLOW_PRIORITY=(LOCAL,XCF,CCI) X

TOGROUP=(groupname)

END


MasterListOptions

§ StillloadedbyMUF

§ OnlyparameterthataffectsMUF– SMFRTY128-255(z/OSonly)

§ StillusedbyDBUTLTY

DBMSTLSTmacro


MUFStartupOptions

– Users– Products– Buffers– MRDF– CPUs– Sysplex/MUFplex– Logging/Recovery– SQL

Groupings

—ProgramSupport

—Security—Console

—Statistics

—Performance

—Diagnostics—Restart

—ChangeDataCapture


MUFStartupOptions

§ TASKS#tasks,size,0,0,xcftasks– TASKS250,32K,0,0,250– TASKS6999,64K,0,0,200

Users


MUFStartupOptions

§ DATACOMentry1,entry2,…– DATACOMDB,SQL,DQ,PRESSPACKor– DATACOMDB– DATACOMSQL– DATACOMDQ– DATACOMPRESSPACK

§ DICTIONARYdatadict-dbid,ddd-dbid– DATADICTIONARY 2,15

Products


MUFStartupOptions

§ SYSPOOLcxxno,ixxno,dxxno,ixxbfrsize,64-bit– SYSPOOL20,1000,3000,,64

§ DATAPOOLdataln,datano,data2ln,data2no– DATAPOOL8K,500,28K,12

§ FLEXPOOLixxno,dxxno,datano,data2no– FLEXPOOL10,100,100,100

§ CBSdbid,buffer,maxsten,maxstio,maxage,heuristic-dbid– CBS6,256K,0,0,16,1006

Buffers


MUFStartupOptions

§ DATASPACEnnnnM– DATASPACE2048M

§ VIRTUALarea,size– VIRTUALIXX006,50M– VIRTUALIXX017,256K– VIRTUALTTM017,2G

MemoryResidentDataFacility(MRDF)


MUFStartupOptions

§ COVEREDarea,size,active/first,begin-blk– COVEREDPAY00001,50%– COVEREDA0100781,110%– COVERED781,110%– COVERED36,90K,FIRST

MemoryResidentDataFacility(MRDF)- continued


MUFStartupOptions

§ SMPTASKmaximum,current,ready,zIIP– SMPTASK4,2,4,SRB

§ IOTASKmaximum,current (default0)– IOTASK4,4

CPUs


MUFStartupOptions

§ XCF_FROMsysname,jobname,grpname,swt– XCF_FROM*,*,PRODGRP,YES– XCF_FROM*,T*,TESTGRP,DELETE

§ MUFmufname,rununits,endmessage– MUF*,99,NO– MUFPRODMUF,99,NO

§ MUFPLEXname,number,locks,maxtasks,mode,tracesize– MUFPLEXADSHADOW,*,,499,S– MUFPLEXPRODPLEX,*,,800,A

SYSPLEX&MUFplex


MUFStartupOptions

§ LOGOPTIONyes/no– LOGOPTIONNO(thedefault)

§ LOGPENDnumber– LOGPEND500

§ LOGPOOLnumber– LOGPOOL30

§ LOGRCVnever/no/yes,dualrxx– LOGRCVNO

LoggingandRecovery


MUFStartupOptions

§ LOGSPILLa,b,c,d,e– LOGSPILL35,85,25,30,20

§ RSScontinue/fail– RSSCONTINUE(requiresRXXROLLBACKYES)

§ RXXROLLBACKyes/no– RXXROLLBACKYES

LoggingandRecovery


MUFStartupOptions

§ DATETIMEdate,time– DATETIMEISO,ISO

§ SQLOPTIONyes/no,ttmid,mode,timeout,view-security,both– SQLOPTIONYES,017,DATACOM,120,NO– SQLOPTIONYES,*,DATACOM,120,NO

§ SQLDEFAULTdbid,name– SQLDEFAULT016,CASQLDEFAULT

§ SQLOPTION_TTMIDdbid1,dbid2,…,dbid7(requiresMUFplex)– SQLOPTION_TTMID0017,1117

SQL


MUFStartupOptions

§ ACCESStype,dbid1,dbid2,…Types:OPTIMIZE;NOOPT;MAINT;NOMAINT;OFF;OPEN;READ;UTLTY;WRITE– ACCESSWRITE,1-5000– ACCESSNOOPT,21-999– ACCESSOPEN,1200,1558– SystemDBIDsrequireOPTIMIZE,thedefault

§ EXCTLNO2-9999– EXCTLNO2K(0=nolimit)

ProgramSupport


MUFStartupOptions

§ READAHDindex/physical(onlyappliestoprogramswithpre-8.1URTs)– READAHDINDEX

§ MAXELRQ3-255(use255ifSQLstartupoptionsinuse)– MAXELRQ255

ProgramSupport


MUFStartupOptions

§ ECHOon/yesoroff/no– ECHOOFF

§ MUFMSGjobname,svc#,mufname– MUFMSGYES,YES,YES– MUFMSGYES,NO,NO

§ MESSAGEtype,messageid– MESSAGEYES,DB00135– MESSAGEYES,DB00136

Console


MUFStartupOptions

§ ACCTtable-no,buffer,status,threshold– ACCT0,8K,CLOSED,5000– ACCT1,24K,OPEN,0

§ ACCTPRMprm-dbid,acct-dbid,cpu-time– ACCTPRM004,005,NO

§ SYSTEMDBIDdbid,maintenance– SYSTEMDBID1000

§ PXXSTATSDETAIL/EOJ/EOJPRT/NONE– PXXSTATSEOJPRT

Statistics


MUFStartupOptions

§ SYSOUT- class,mlparm,cbsparm,sqlparm,ddparm,dstparm– SYSOUT0,5M,1M,3M,1M,1M

§ MasterListsnaps(mlparm)§ CBStraces(cbsparm)§ SQLtraces(sqlparm)§ CADatacomDatadictionarytraces(ddparm)§ DSTtraces(dstparm)

Statistics(continued)


MUFStartupOptions

§ BREAK2-500– BREAK100

§ NONSWAPno/yes– NONSWAPYES

Performance


MUFStartupOptions

§ RCERRORmldump,mlbufdump,rc(s)– RCERRORYES,YES,08008– RCERRORYES,NO,10039– RCERRORNO,NO,10039

Diagnostics


MUFStartupOptions

§ NORESTARTall/dbid– NORESTARTALL– NORESTART101

§ DORESTARTall/dbid– DORESTARTALL– DORESTART151,182– DORESTART21-99

Restart


MUFStartupOptions

§ CDCyes/no,size– CDCYES,8M(default0)

§ CDC_BASEyes/no,dbid– CDC_BASEYES,101– CDC_BASEYES,101-568

§ CDC_TABLEyes/no,tablename-dbid– CDC_TABLEYES,PAY001

ChangeDataCapture(CDC)


MUFStartupOptions

§ CDCLnameA– CDCLPRODMUFA

§ CDCL_DBIDname,dbid– CDCL_DBIDPRODMUF,2009

§ CDCL_DSname,x,dsn– CDCL_DSPRODMUF,P1,*

§ CDCL_OPENname– CDCL_OPENPRODMUF

CDC(continued)


MUFStartupOptions

§ CDCL_POLLname,n (1—28800)– CDCL_POLLPRODMUF,60

§ CDCL_RESETname– CDCL_DBIDPRODMUF

§ CDCL_CLOSE– CDCL_CLOSE

§ CDCL_CNTTByes/no– CDCL_CNTTBYES

CDC(continued)


MUFStartupOptions

§ CDCM_DBIDname,DBID– CDCM_DBIDPRODMUF,2021

§ CDCM_IDa– CDCM_IDA

§ CDCM_OPEN– CDCM_OPEN

§ CDCM_POLLn(1—28800)– CDCM_POLL60

CDC(continued)


MUFStartupOptions

§ CDCM_SIDNAMEname– CDCM_SIDNAMEDBSIDPX

§ CDCM_WARNn(1—28800)– CDCM_WARN120

CDC(continued)


MUFInitiation

§ LoadsMUFinitializationmodulesincludingDBMSTLST

§ EditsSYSINstartupoptions

§ LoadsadditionalMUFmodules

§ Performsrestartactivitiesifneeded

§ Producesstartupmessages

DBMUFPR


MUFConsoleCommands

§ ACCESSstatus,dbid– /fPRODMUF,ACCESSOFF,781– DB01335I- CONSOLESCHEDULED- ACCESSOFF,781– DB00607I- BASE781ACCESSOFF(BASEISCLOSED)– DB00608I- CONSOLECOMPLETE- ACCESSOFF,781

§ ACCT_ADDtblname,buffer,threshhold– /fPRODMUF,ACCT_ADD11,8K,0– DB01311I- ACCT_ADD11,8K,0– DB01335I- CONSOLESCHEDULED- ACCT_ADD11,8K,0– DB00608I- CONSOLECOMPLETE- ACCT_ADD11,8K,0


MUFConsoleCommands

– REQABORT– EOJ– EOJFREE(stillsupported,processedasEOJ)– EOJKEEP(stillsupported,processedasEOJ)– EOJOFF– CLRPXX– NEWRXX– SNAP

Continued


MUFConsoleCommands

– FLEXPOOL– SECURITY– SMPTASKm,c,r– SMPTASKR r– IOTASK i

Continued


NEWCOPY

§ Avalidstoredprocedurenameoroneofthefollowingmodulenames:– DBACMPR,DBACRPR,DBAFNPR,DBBFMPR,DBBFWPR,

DBCAPPR,DBCFMPR,DBCL1PR,DBCMPPR,DBCOMPR,DBDSMPR,DBDSTPR,DBDS2PR,DBDS3PR,DBDVCPR,DBEIPPR,DBIDFPRDBIDSPR,DBIDXPR,DBID3PR,DBIOCPR,DBIOMPR,DBLOGPR,DBMEMPR,DBMPLPR,DBMP2PR,DBMSMPR,DBOP1PR,DBREDPR,DBREXPR,DBR0PPR,DBRPFPR,DBRPSPR,DBRPTPR,DBRQPPR,DBSMNPR,DBSPLPR,DBSQMPR,DBSRPPR,DBSVLPR,DBTXBPR,DBUPDPR,DBUPXPR,DBUTMPR,DBXCFPR,DBXESPR,DBXNFPR


NEWCOPY

§ UsingNEWCOPYforDBmodulesisstronglydiscouraged

§ UseaShadowMUFtoperformDBmodulemaintenance

Continued


NEWCOPYMessages

§ DB01314ENEWCOPYERRORn,wherenrepresentsanerror::1. Moduleisnotinalistofcandidatemodules.2. ModuleisnoteligibleforNEWCOPY.3. Loadfailedforanewcopy.4. UnabletodoNEWCOPYoftheprocedurebecausetheMulti-UserFacilityisnotauthorized.5. Moduleisnotcurrentlyinmemory.6. Currentmodulecannotberenamedinoperatingsystemcontrolblocks.

§ DB01326INEWCOPYCOMPLETEindicatesthatnoerroroccurred


MUFMessages

§ Latestmaintenancelevels– DB00248I- PARMPGMDT=20090430,DBBFWPR2012/10/19-161112RO49660– DB00248I- PARMPGMDT=20090430,DBCAPPR2012/07/30-111012RO48627– DB00248I- PARMPGMDT=20090430,DBCFMPR2011/12/08-153612RO35829– DB00248I- PARMPGMDT=20090430,DBCL1PR2012/06/20-155412RO47368

§ DBSIDPRparameters– DB00249I- DBSIDPR2012/03/2110.13SVC=000TOGROUP=DBAJGRP

§ Startupoptionsechoedback– DB01900I- ACCESSWRITE,1-5000– DB01900I- ACCESSNOOPT,1– DB01900I- ACCT0,8K,CLOSED,0


MUFShutdown

§ BatchDBUTLTYCOMMOPTION=EOJ

§ ConsoleEOJcommand‘/fjobname/stcname,EOJ’

§ ConsoleSTOPcommand‘/fjobname/stcname,STOP’(treatedsameasEOJ)


MUFShutdown– Normal

§ Closedatabases

§ UpdatesPXX

§ EndsLOG(LXX)

§ UpdatesCXX

§ ProducesSYSPRINToutput

§ Closesalldatasets


ModuleSummary

§ StatethepurposeoftheMulti-UserFacility

§ NamesomeMulti-UserStartupoptions

§ IssueMulti-Userconsolecommands

§ InterpretMulti-Usermessages


Module4:Datadictionary


Agenda

IDENTIFYTHECOMPONENTSOFADATABASE

NAMETHEMETHODSFORDEFININGADATABASE

CREATEASIMPLEDATABASEANDITSCOMPONENTS

CATALOGADATABASE

1

2

3

4


CADatacomDatadictionary

§ Repositoryforall CADatacom/DBdatabaseinformation

§ Storesrelatedinformation– CAIdealforCADatacom

§ Canbeusedtostoreuserinformation– Additionalentities– Additionalrelationships



§ Wheredoesitreside?– DBID002

§ 32tablesinasinglearea(DD1)Version14.0§ 33tablesinasinglearea(DD1)Version15.0

– VLSfiles§ DDOFILE§ DDOFIL2§ MDUOLL(DDMAP)§ ADRPNL

Continued



§ RelationshiptotheCXX– DatadictionarypopulatestheCXX– DatabaseCATALOGcommand(DDUPDATE,online)– SQLDMLalsoupdatesCXX

§ CREATETABLE,ALTERTABLE§ Issuestable-levelCATALOGunderthecovers

Continued


CADatacom/DBModel

§ Namingconventions

§ Definingthemodel

§ Statusandversion

§ Relationships

§ CATALOGtotheCXX(andDDD)

§ BuildingSQLPlans


DatadictionaryNamingConventions

§ Datacomname(DATACOM-NAME)– 3alphanumericcharacters– dataandindexareas– Upto5alphanumericcharacters– keys,elements

§ DatacomID(DATACOM-ID)– 3digits

§ Datadictionaryoccurrencename(ENTITY-NAME)– 1-32alphanumericcharacters

§ SQLname(SQLNAME)– 1-32alphanumericcharacters


DefiningtheModel

§ Database

§ Area

§ Table– Fields(columns)– Keys(indexes)– Elements

§ Dataviews


StatusandVersion

§ Status/Version– TEST (includesalltestversions)– T001-T999 (individualtestversions)– PROD (whateverversioniscurrentlyinPRODuction status)– HIST (includesallversionsinHISTory status)– H000-H997 (historygenerationnumber)– 001-999 (absoluteversionnumber)


Relationships

§ $INTERNAL(StandardDBModelpath)– Database-Area– Area-Table– Table-Field (emulated)– Table-Key– Key-Field (emulated)– Table-Element– Element-Field (emulated)– Dataview-Element– Dataview-Key


Relationships

§ RelationshipsforpathsincludingCAIdealentities– Program-Panel PGM-PNL-USE– Program-Dataview PGM-DVW-USE– Program-Report PGM-RPT-PRODUCE– Program-Program PGM-PGM-CALL– Etc.

§ User-definedrelationships

Continued


Synchronization

§ Backups– BestpracticetobackupDATA-DICT,DDD-DATABASEandCXXatthe

sametime– Recommendbackupsbefore/aftermakingamajorstructurechange– ConsideralwaysusingLOGRCV=NO(doingSPILLs),evenintestMUFs,

forDD/DDD.DangerofincompleteTransactionBackout

§ Restores– CoordinatewithDDDandCXX

§ Recovery– Cannotrecoveracrossastructurechange


DatabaseDefinitionUsingDDUPDATE

§ SeeCADatacomDatadictionary BatchReferenceGuide

§ 80-columnstatements,transactionsfrompastversionssupported

§ Canadd/defineallorpartofadatabasestructure

§ Canupdate,delete,copy,transfer,restore– Individualentityoccurrencedefinitions– Structuresorsub-structures(i.e.table,columns,keys,elements)

§ Canupdateexistingentityoccurrenceattributevalues


UserDatabaseDefinition

§ Batch,usingDDUPDATE

§ GeneratetransactionsusingDDBTGLM,thenDDUPDATE

§ DDTRSLMIMPORT

§ Online,usingDDOL

§ UsingSQLtodefinetables– MakingtablesSQL-ablethatwerenotcreatedviaSQL– Definingthedatabase(CREATEDATABASEin15.0,15.1)


SampleADDofDatabaseStructure

//SYSIN DD *

-ADD DATABASE,dboccname(T001)1001 'author' 'controller'1101 descriptorname1103 aliasname1200 TEXT CLS STANDARD1200 TEXT ADDThis is a sample database add1200 TEXT END2900 05000 RELATION DATACOM 000 NN-END

PartI-- Database



-ADD AREA,areaoccname(T001)1000 CONNECT,dboccname1001 'author' 'controller'...-END

-ADD TABLE,tbloccname(T001)1000 CONNECT,areaoccname1001 'author' 'controller'...-END

PartII– Area,Table



-GRP START,TABLE,tbloccname(T001)-ADD FIELD,first-field4010

4012

...-END-ADD FIELD,last-field...-END-GRP END

PartIII– Fields(columns)



-ADD KEY,tbloccname.key1(T001)

5000...-END-ADD ELEMENT,tbloccname.elem1(T001)

6000...-END//

PartIV– Key,Element


SampleUpdateOccurrenceandDeletes

//SYSINDD*

-UPDDATABASE,dboccname(T001)290004998-END

-DELDATABASE,dboccname(T001)-END

-DELTABLE,tbloccname(T001)-END

//

PartIV– Key,Element


OtherFunctions1000DISABLE

1000ENABLE

1000RESTORE

1000SET

1000VERIFY

1000ALTER

1000CATALOG

1000TRANSFER

1000NEWNAME

1500AttributeValueUpdate


SampleofAdditionalFunctions

//SYSIN DD *

-UPD DATABASE,dboccname(PROD)1000 DISABLE-END

-UPD DATABASE,dboccname(T001)1000 VERIFY-END

-DEL DATABASE,dboccname1000 OBSOLETE-END

//


SampleofAdditionalFunctions

//SYSIN DD *

-UPD DATABASE,dboccname(PROD)1000 ALTER1500 DYNAMIC-EXTEND,T-END

-UPD AREA,dboccname(PROD)1000 ALTER1500 BLOCK-SIZE,8192 -END

//

Continued


SampleofUpdate

//SYSIN DD *

-UPD DATABASE,dboccname(T001)2900 04998-END

-DEL DATABASE,dboccname(T001)-END

-DEL DATABASE,dboccname1000 OBSOLETE-END

//


DDBTGLM– BatchTransactionGenerator

§ GeneratesbatchtransactionsacceptedbyDDUPDATE

§ Buildstransactionsfromexistingdatabasedefinitions

§ Usedtotransferormodifydatabasedefinitions

§ Samejobstreamformatas-ADDinDDUPDATE

§ Uses-BTGfunctionheaderinstead– AddsentityifnotpresentinDatadictionary

– ReplacesentityifalreadyinDatadictionary(excepttableandbelow)


DDTRSLM– MigrateSQLDefinitions

§ EXPORT,IMPORT,TRIAL,SET

§ UsetomigratePlans,Programs,Synonyms,Tables,Views,TriggersandProcedure– EXCLUDE/INCLUDE

– ONLY

– TRIAL– checkforconflictsormissingdependencies

– SET– USER,FORMAT,MODE,COLLISION,TRACE


DDUTILTY– BatchReportsandSourceLanguageStmts.

§ Reports:ALIAS,DEFINITIONS,DESCRIPTORS,DETAIL,FIELD,INDENTED,INDEX,RELATIONSHIP,SCHEMA,TEXT

§ Usepathingtoproducereportsofrelatedentities– DEFPATH,TRACEF,TRACEB

§ ProducecopybooksforTABLE,RECORD,KEYorELEMENToccurrences– Assemblername,COBOLnames,Datareporter,PL/I,SQLtoincludeinprograms


DDRMFLM– RecordMigrationFacility

§ Insertnewfield(s)intoatable

§ Deletefieldsfromatable

§ Changetheorderoffieldsinatable

§ Changecertainfieldtypestoothertypesinatable

§ Changefieldlengthsinatable

Batchfacilitytochangetheformatofdatarecords


DDICF– InputCreationFacility

§ Primaryuseistomoveanon-databasetabletoDatacom

§ Inputiscopybook,outputisasourcememberconsistingofDDDUPDATEtransactions

§ Couldbeusedtochangeatabledefinitionifworkingwithacopybookwaseasier

CreateDatadictionarydefinitionsfromcopybooks


DDCFBLD– ControlFileBuild

§ Threeflavors:– -CXXBUILD(forDATA-DICT,DDD-DATABASE,databasesnotaccessedbySQL)

§ RequiressubsequentDBUTLTYOPTION=DDPROD

– -CXXCATALOG(foranydatabaseexceptDATA-DICTandDDD-DATABASE)

– -HSDRESET(toupdatetheHSDwithoutaCATALOG)

UpdateCXX/HSD/DDDwithdefinitionsmaintainedinDATA-DICT


DDSDCLM– StructureDefinitionComparator

§ Availablefor12.0,14.0and15.0forupgradestonextrelease

§ DocumentedinDatadictionaryBatchReferenceGuide

§ InsuresintegrityofDATA-DICTdatabase

§ Producesareportidentifyinganydiscrepancies

§ Discrepanciesmustberesolvedpriortoupgrading

§ VarioussolutionsdeliverDDUPDATEtransactionstofixerrorconditions

ValidatesDATA-DICTstructurebeforeanupgrade


UsingDatadictionaryOnline(DDOL)

§ CICSbasedtransactions

§ Multiplemodes

§ Multiplelevelsandclassesofusers

§ Internalorexternalsecurity

§ SeeDatadictionaryOnlineUserGuide


MainMenuSelectionDDOL


DatabaseStructureMaintenanceDDOL


DefiningtheDatabase

§ Chooseappropriatemethodtocreatethedatabasedefinitions

§ Determinevaluestospecifyforeachattribute

§ Addentity-occurrenceswiththerelatedattributevalues

§ Reviewthedefinitions


ModuleSummary

§ Identifythecomponentsofadatabasestructure

§ Namethemethodsfordefiningadatabase

§ Createasimpledatabaseanditscomponents

§ Catalogadatabase

Whatwehavedone

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Technology

Pre-Con Ed: Introduction to CA Datacom Key Concepts and Facilities Part I