pre-con ed: using sql to access your ca idms databases

World®’16

UsingSQLtoAccessYourCAIDMSDatabasesDavidRoss,Sr.PrincipalProductOwnerCATechnologies

MFX73E

MAINFRAMEANDWORKLOADAUTOMATION

2 ©2016CA.ALLRIGHTSRESERVED.@CAWORLD#CAWORLD

Abstract

Thissessiondescribeshowtorepresentyourexistingnetwork-definedCAIDMSdatabasesforrelationalmodelaccess.AvailableSQLaccessstrategiesarediscussedindetailsuchastheuseofproceduresandtableproceduresandtheuseofforeignkeys.

DavidRoss

CATechnologiesSr.PrincipalProductOwner,CAIDMS


Agenda

LEVERAGINGANDEXTENDINGCAIDMS™

CAIDMSSQL

MAXIMUMSIX(6)WORDSPERBULLET

RELATIONALTONETWORKMAPPINGTECHNIQUES

CAIDMSSERVER

MAXIMUMSIX(6)WORDSPERBULLET

1

2

3

4

5

6


LeveragingandExtendingCAIDMS


HowDoYouMaximizeBusinessValue?

Largeinvestmentinlegacyapplications••Costlyandriskyconversion••Hardtofindlegacyskills

LeverageandExtend••Leverageinvestment,reducecost••Preserveapplications,reducerisk••Usecurrentdeveloperskills


LeveragingandExtendingCAIDMSWhatWeMean

••Keepyourdatabaseinplace••Accessfromwebservices••Usestandardinterfaces

LeverageCAIDMSdatabases

••Reuseyourapplicationbusinesslogic••Invokewebservices••Providewebservices

ExtendCAIDMS

applications


LeveragingCAIDMSHowYouCanDoIt

UseindustrystandardAPIs

••SQL••ODBC,JDBC••SOAP,REST••HTTP••TCP/IP

Enabledby

••CAIDMSSQL••CAIDMSServer••CAIDMSWebServices••CAIDMSSockets


CAIDMSModernizationArchitecture

CAIDMSCV

Consumer WebService

IDMSWebServices

PL/1COBOL

AppServer

WebService Consumer ConsumerApps

MobileApps

AppServerProvider

JDBC

IDMSProvider

LeverageExisting

Applications

WebService

IDMSSQL/JDBC

SQLProcedure

ADS


CAIDMSSQL


CAIDMSSQLRelationaltoNetworkMapping

••IdenticallynamedTable

••EquivalentRow

••AutomaticallyrenamedColumn

••PartialmappingReferentialconstraint

••ViaSCHEMARecorddefinition

••EquivalentRecordoccurrence

••ExceptODO,redefines,…Element

••LackofforeignkeysSet

SQL Network


CAIDMSSQLEnablesAccesstoNetworkRecordsInOneEasyStep

CREATE SCHEMA EMPSQLFOR NONSQL SCHEMAAPPLDICT.EMPSCHM V 100;

SQLSchema

Identifies

Networkschema Databaseinstance(optional)

DefinedinSQLcatalog


NoNeedtoCreateanewDatabase

Everynetworkrecordautomaticallyappearsasatable

OBTAINCALCbecomes

SELECT * FROMEMPSQL.EMPLOYEEWHERE “EMP_ID_0415” = 9771;


NetworkRecord

Appearsasatable••Namenottranslated••Encloseinquotesifneeded

EMPSQL.”DENTAL-CLAIM”


RecordElement

Lowestlevelelementappearsasacolumn••Nametranslated••Hyphenschangedtounderscores••SQLsynonymcanoverridename

TypemappedtoSQLtype

Someelementdefinitionsarenotmapped••Groupitems••Redefines••Occursdepending


ANetworkSetMayAppearasaReferentialConstraint

Referencedtable

Referencingtable

DEPT-EMPLOYEE

DEPT-ID-0410

DEPARTMENT

ORG-DEMO-REGION

410 F 120 CALC

EMP-ID-0415

EMPLOYEE

EMP-DEMO-REGION

415 F 120 CALC


RelationalModelReferentialConstraintsBasedonDataValues

FOREIGN KEYPRIMARYKEY

DepartmentTable EmployeeTable

DEPT_ID DEPT_NAME

1001 SALES

1010 HUMAN RES

1050 ACCOUNTING

1090 PAYROLL

EMP_ID E_LNAME E_FNAME JOB DEPT

12345 CLEMENS SAMUEL J200 1010

21343 MCGEE AGNES J001 1001

31254 GIBSON JOHN J010 1050

43251 SCOTT WESTON J410 1050


NetworkModelChainedSetsareLinkedLists


ChainedSetPointersNotExplicitDataValues


RelationalToNetworkMappingTechniques

Syntaxextensions

Views

Procedures••Tableprocedures••Calledprocedures

Foreignkeys••Referentialsets••Virtualforeignkeys


SyntaxExtensions

CAIDMSExtensionstoSQL••Noprogramming••Nodatabasechanges

SetNamePredicate••WHERE<setname>••Joincriteriaforsetnavigation••Supportsmostqueries

ROWIDPseudoColumn••BasedonDBKEY,hasthesamepersistence••Notdefinedincatalogordictionary••Especiallyusefulforupdatingrecords


EMPSCHMDatabase

COVERAGE-CLAIMS

EMP-COVERAGE

EMP-ID-0415

EMPLOYEE

EMP-DEMO-REGION

415 F 120 CALC

OCCURS DEPENDING ON

COVERAGE-CLAIMS

DENTAL-CLAIM

INS-DEMO-REGION

405 V 932 VIAEMP-COVERAGE

COVERAGE

INS-DEMO-REGION

400 F 20 VIA


UsingASetNamePredicate

SELECT EMP_ID_0415,INS_PLAN_CODE_0400,DENTIST-LICENSE-NUMBER-0405FROM EMPSQL.EMPLOYEE,EMPSQL.COVERAGE,EMPSQL.”DENTAL-CLAIM” CWHERE “EMP-COVERAGE”AND “COVERAGE-CLAIMS”.C


UsingaROWID

UPDATE EMPSQL.COVERAGE CSET SELECTION_YEAR_0400 = 20WHERE C.ROWID IN (SELECT CI.ROWIDFROM EMPSQL.EMPLOYEE E,EMPSQL.COVERAGE CI

WHERE “EMP-COVERAGE”AND EMP_ID_0415 = 23)


Views

Encapsulatesyntaxextensions

Encapsulaterelationships

Overridecolumnnames

Enforcesecurity••Tables••Columns••Rows


UsingaView

CREATE VIEW EMPSQL.EMPL_DENTIST(EMPLOYEE_ID, PLAN_CODE, DENTIST_NUMBER) ASSELECT EMP_ID_0415,INS_PLAN_CODE_0400,DENTIST-LICENSE-NUMBER-0405FROM EMPSQL.EMPLOYEE,EMPSQL.COVERAGE,EMPSQL.”DENTAL-CLAIM” CWHERE “EMP-COVERAGE” AND “COVERAGE-CLAIMS”.C

SELECT * FROM EMPSQL.EMPL_DENTISTWHERE EMPLOYEE_ID = ‘0555’


TableProcedures

ExternalprogramthatissuesnativeDML

AccessedliketableinSQLDML••SELECT••INSERT••UPDATE••DELETE

Returnsaresultsetlikeatable


TableProcedureUseCases

Encapsulaterelationships

Solvestructuralproblems••Lackofembeddedforeignkeys••OCCURSDEPENDINGON

Requiresprogramming••CangeneratedwithCAIDMSSQLQuickBridge

Nodatabaseorapplicationchanges


EMPSCHMDatabase

COVERAGE-CLAIMS

EMP-COVERAGE

EMP-ID-0415

EMPLOYEE

EMP-DEMO-REGION

415 F 120 CALC

OCCURS DEPENDING ON

COVERAGE-CLAIMS

DENTAL-CLAIM

INS-DEMO-REGION

405 V 932 VIAEMP-COVERAGE

COVERAGE

INS-DEMO-REGION

400 F 20 VIA


DefiningATableProcedure

CREATE TABLE PROCEDUREDENTAL_CLAIM (

EMPLOYEE_ID NUMERIC(4, 0),INS_PLAN CHAR(3),TYPE CHAR(1),DENTIST_LIC NUMERIC(6, 0),PROC_CODE NUMERIC(4, 0),FEE DECIMAL(9,2))

EXTERNAL NAME EMPDCLAM;


UsingATableProcedure

SELECT PROC_CODE, FEEFROM DENTAL_CLAIMWHERE EMPLOYEE_ID = 0555

AND INS-PLAN = ‘004’AND TYPE = ‘F’AND DENTIST_LIC = 123456;

INSERT INTO DENTAL_CLAIMVALUES (666,‘004’,’F’,654321,5555,585.00);


ForeignKeys

ReferentialSets– userdefined

VirtualForeignKeys– systemdefined

AllowuseofstandardSQL

Enforcereferentialconstraintenforcement

StandardODBCandJDBCmetadata

Compatibilitywithcommontools


EMPSCHMDatabase

DEPT-EMPLOYEE EMP-EXPERTISE

DEPT-ID-0410

DEPARTMENT

ORG-DEMO-REGION

410 F 120 CALCEMP-ID-0415

EMPLOYEE

EMP-DEMO-REGION

415 F 120 CALCEMP-EXPERTISE

EXPERTISE

EMP-DEMO-REGION

400 F 16 VIA


ReferentialSets

Exposesetsasreferentialconstraints••Queries••Updates

Basedonrecordkeyvalues••Primarykey=UNIQUECALCorsystemownedindex••Foreignkey=columnvalueinmemberrecord

Defineonnetworkschemasetdefinition

VisiblethroughJDBCandODBCmetadata

Enableaccessforcommontoolsandapplicationframeworks

UseSQLtoaccessandmaintainnetworkdatabasesfromJava


EMPSCHMwithReferentialSets


DEPT-ID-0410

DEPARTMENT

ORG-DEMO-REGION

410 F 120 CALC

EMP-ID-0425DEPT-ID-0415

EMP-ID-0415

EMPLOYEE

EMP-DEMO-REGION


EXPERTISE

EMP-DEMO-REGION

425 F 16 VIA


UsingReferentialSets

§ NonstandardCAIDMSextensionsUPDATE EMPSQL.EXPERTISE

SET EXPERTISE_YEAR_0425 = 20WHERE ROWID IN (

SELECT X.ROWIDFROM EMPSQL.EMPLOYEE E,EMPSQL.EXPERTISE XWHERE “EMP-EXPERTISE”

AND EMP_ID_0415 = 23)

§ BecomestandardSQLUPDATE EMPSQL.EXPERTISE

SET EXPERTISE_YEAR_0425 = 20WHERE EMP_ID_0425 = 23)


ImplementingReferentialSets

Defineprimaryandforeignkeysforset

Mayneedtorestructurememberrecord

Populateforeignkeysinmember

Maintainforeignkeysinmember

Alternativetomigration

••Candoincrementally••Lesscost••Lesseffort


VirtualForeignKeys

Exposesetsasreferentialconstraints••Queries••Updates

BasedonROWID••Virtualprimarykey=ROWID••Virtualforeignkey=FKEY_<set_name>

DefineonSQLschemadefinition

VisiblethroughJDBCandODBCmetadata

Enableaccessforcommontoolsandapplicationframeworks

UseSQLtoaccessandmaintainnetworkdatabasesfromJava


VirtualForeignKeyBenefits

§ UsestandardSQLtoaccessandupdateCAIDMS– RemovesINSERTandUPDATElimitations– CapabilitieslikenetworkDML– WriteapplicationsusingJava,.NET,andpopularframeworks– NospecialCAIDMSSQLsyntax

§ Easytoimplement– Nodatabasechanges– Nochangestonetworkdefinitions– Noneedfortableprocedures


EnablingVirtualForeignKeys

§ “Create”virtualkeyswithSQLschemadefinitioncreateschemaEMPSQL

fornonsql schemaEMPDICT.EMPSCHMversion100withvirtualkeys

§ ROWIDandvirtualforeignkeysbecomevisible– SELECT*– INSERTcolumnlistwhenlistisomitted– UPDATEcolumnlistwhenlistisomitted

§ “Remove”virtualkeysalterschemaEMPSQLwithoutvirtualkeys


EMPSCHMWithVirtualForeignKeys


DEPT-ID-0410

DEPARTMENT

ORG-DEMO-REGION

410 F 120 CALC

FKEY_EMP_EXPERTISEFKEY_DEPT_EMPLOYEE

EMP-ID-0415

EMPLOYEE

EMP-DEMO-REGION


EXPERTISE

EMP-DEMO-REGION

425 F 16 VIA

ROWID ROWID ROWID


UsingVirtualForeignKeys

§ NonstandardCAIDMSextensionsUPDATE EMPSQL.EXPERTISE

SET EXPERTISE_YEAR_0425 = 20WHERE ROWID IN (

SELECT X.ROWIDFROM EMPSQL.EMPLOYEE E,

EMPSQL.EXPERTISE XWHERE “EMP-EXPERTISE”

AND EMP_ID_0415 = 23)

§ BecomestandardSQLUPDATE EMPSQL.EXPERTISE

SET EXPERTISE_YEAR_0425 = 20WHERE FKEY_SET_EMP_EXPERTISE = (

SELECT ROWIDFROM EMPSQL.EMPLOYEEWHERE EMP_ID_0415 = 23)


ComparisonofMappingTechniques

SQLExtensions No No No No Limited

Views Yes No No No Limited

TableProcedures Yes Yes No No Encapsulate

ReferentialSets Yes No Yes Maybe Referentialconstraints

VirtualKeys Yes No No No Referentialconstraints

StandardSQL Newprograms ExposesSetsApplicationchanges

Restructure


CAIDMSServer


CAIDMSServer

§ CAIDMSasaServer

§ ODBCdriver

§ JDBCdriver

§ DynamicSQL


ODBCOpenDataBaseConnectivity

CallLevelInterface

Interoperability

MicrosoftWindows

ODBC.NET


ODBCArchitectureWindows

ODBC ApplicationProgram Interface

ODBC ServiceProvider Interface

Network and DBMS

ODBCApplication

ODBC DriverManager

ODBCDriver

DataSource

ODBCDriver

DataSource


CAIDMSODBCDriver

§ ODBC3.5

§ Wireprotocolcommunications

§ 32and64-bitdrivers


JDBC“JavaDataBaseConnectivity”

CallLevelInterface

Objectoriented

Interoperability

AnyJavaplatform


JDBCArchitecture

JavaVM

Java Application

DriverManager

DriverInterface

Networkand DBMS

Driver

URL

Driver

URL


CAIDMSServerArchitectureODBCandJDBC

SQLClientInterface

ODBCDriver JDBCDriver

SQLEngine

NetworkDBMS


JDBCDriverTypes

DBMS

ODBC

JDBC

Type 1

JDBC

Native

DBMS

Type 2

DBMS

JDBC

Type 4

Middleware

DBMS

JDBC

Type 3


CAIDMSJDBCDriver

§ JDBC4.0

§ “Universal”driver– Types2,3,4

§ 64-bitType2Driver

§ Type4JDBCDriver– DirectconnectionfromJDBCdrivertoCV

§ DistributedXAtransactions


Type4JDBCDriver

CVJava

TCP/IP

JDBCDriver

NativeClient

JDBCServer


Type4Server

TCPIPLineDriver

JSRVServerTask

SQLClient

SQLEngine

GenericListener


SYSGENServerDefinition

ADD PTERM TCPJSRVTYPE IS LISTENERPORT IS 3799TASK IS RHDCNP3JMODE IS SYSTEMPARM IS 'TASK=IDMSJSRV'.

ADD LTERM TCLJSRVPTERM IS TCPJSRV.


XAResourceManager

TCPIPLineDriver

JSRVServerTask

SQLClient XAClient

SQLEngine TransactionManager

GenericListener


CAIDMSServerCAIDMSServerenablesWindowsandJavadeveloperstouseSQLaccessandupdateCAIDMSdatabasesandapplications.

CAIDMSCAIDMSSQLandCAIDMSServerhelpusersleverageandextendtheirinvestmentinCAIDMSapplicationsanddata.

CAIDMSSQLCAIDMSSQLenablesdeveloperstouseSQLtoaccessandupdatenetworkdatabasesaswellastocreatenewSQLdefineddatabases.

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pre-con ed: using sql to access your ca idms databases

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