DB2Migration 절차, 방법및MTK 소개 -타DBMS와연계 -SQL ... migration 절차및방법 DB2 Migration 단계7. Test 및검증 -기존운영환경데이터의손실없이application이동일하게동작되는지검사합니다

DB2 Information Management Software

2008 IBM Corporation

DB2 Migration , MTK

- DBMS

- SQL

IBM KoreaSoftware GroupIM

2 2008 IBM Corporation

IBM DB2

1. DB2 Migration

2. DB2 Migration

3. MTK

4. SQL Conversion

5. MTK Migration

6. Access Guidelines

7. User Defined Function

8. DBMS

9. SQL


IBM DB2

1. DB2 Migration 1. DB2 Migration

TCO : 5 (TCO:Total cost of Ownership) DBMS

49%-70% .

Migration offering , Migration tool kit,

POC .

IBM Know-how

DB2 .

Application DB

.

DB2 IBM , TPC-C, TPC-H

SAP , DB2 Autonomic computing

Grid .


IBM DB2

2. DB2 migration 2. DB2 migration

DB2 Migration

Assessment & PlanningAssessment & Planning

Database object migrationDatabase object migration

Application conversionApplication conversion

Data MigrationData Migration

Performance tuningPerformance tuning

Test Test

MigrationMigration databasedatabase migration migration , ,

migrationmigration tooltool

Database structure Database structure DatabaseDatabase objectobject migration migration

ApplicationApplication conversion conversion

Data Data

performance tuning performance tuning

Migration Migration database, application database, application

HA HA , , replication, backup toolreplication, backup tool


IBM DB2


DB2 Migration 1. Assessment & Planning

- migration

Assessment item Assessment item

DB2 porting guideDB2 porting guideIBM IBM

MigrationMigration tooltool Migration Migration tooltool

Application architectureApplication architecture

Application sizeApplication size

Application SQL Application SQL

ApplicationApplication

Database sizeDatabase size

Table Table , , row size, indexrow size, index

Stored procedure, User defined functionStored procedure, User defined function

TriggerTrigger

Database structureDatabase structure

((Middleware, Tool, Compiler, etc.)Middleware, Tool, Compiler, etc.)

PlatformsPlatforms

MigrationMigration


IBM DB2


DB2 Migration 2.

-

DB2 DB2

DB2 DB2

DB2 DB2 Tool Tool

IBM IBM

ToolTool

, ,

Client Client

Application Application


DB2 DB2

DB2 DB2

DB2 DB2

DB2 DB2

OS OS

Disk Disk


IBM DB2


DB2 Migration 3. Database object migration

- database object migration

DB2 Migration tool kitDB2 Migration tool kit

DB2 UDB conversion guide (from Oracle/Sybase/SQL server )DB2 UDB conversion guide (from Oracle/Sybase/SQL server )

IBM IBM

ToolTool

Stored procedureStored procedure user defined functionuser defined function Stored procedure,Stored procedure,

User defined functionUser defined function

Column typeColumn type

IndexIndex

ConstraintsConstraints

Table Table

Database typeDatabase type

PartitioningPartitioning

TablespaceTablespace

LogsLogs

Database logical / Database logical /

physical layout physical layout

DatabaseDatabase

Object Object

MigrationMigration


IBM DB2


DB2 Migration 4. Application Migration

- DB2 application source conversion


DB2 Development centerDB2 Development center

DB2 UDB conversion guide (from Oracle/Sybase/SQL server )DB2 UDB conversion guide (from Oracle/Sybase/SQL server )

IBM IBM

ToolTool

IBMIBM MTKMTK on the flyon the fly SQL translatorSQL translator SQL conversion SQL conversion

SQL SQL

conversion toolconversion tool

SQLSQL SQL SQL

SQLSQL

Isolation level, lockIsolation level, lock

Error Error

Application source Application source

Source Source

ConversionConversion


IBM DB2


DB2 Migration 5. Data Migration

- DB2 .

DB2DB2 loadload datadata

TypeType conversionconversion

programprogram script script

Data Data


DB2 Admin clientDB2 Admin client

DB2 Load toolDB2 Load tool

IBM IBM ToolTool

DB2 Load toolDB2 Load tool data loaddata load

Referential constraintReferential constraint Data Data

Type Type migration migration

--NumericNumeric

--Date, Date, datetimedatetime

Source dataSource data target datatarget data sample sample

Table Data Table Data

Data migration Data migration


IBM DB2


DB2 Migration 6. Performance tuning

- database application

DB2 Performance Tuning GuideDB2 Performance Tuning Guide

DB2 Health centerDB2 Health center

DB2 AdvisorDB2 Advisor

IBM IBM

ToolTool

DB2 databaseDB2 database

DB2 applicationDB2 application

monitoringmonitoring

DB2DB2 advisoradvisor health centerhealth center

Migration Migration

Performance Performance

tuningtuning


IBM DB2


DB2 Migration 7. Test

- application

DB2 Migration tool kitDB2 Migration tool kitIBM IBM ToolTool

Migration Migration

Data Data


Migration Migration test test

Test Test


IBM DB2


DB2 Migration 8.

- Migration DB2

backup toolbackup tool Backup Backup


DB2 admin guideDB2 admin guide

DB2 HA DB2 HA

IBM IBM ToolTool

Table, indexTable, index REORGREORG

Database Database

HA HA


IBM DB2

3. DB2 MTK 3. DB2 MTK

DB2 MTK (DB2 Migration Tool Kit)?- DB(Oracle, Sybase) DB2 migration tool- migration , .

- DB2 .

- Source DB DDL

ODBC/JDBC , migration source DB DDL .- DB Object

Table, index, trigger, sequence, procedure- Data

script , data tool .- Migration report

Migration HTML report .- SQL translator

DB2 SQL , sql tool.

- Function conversion library

DB DB2 library .


IBM DB2

3. DB2 MTK 3. DB2 MTK

1. Project ( )

2. Source

- MTK source DB Metadata(DDL) import

3. Convert

- Source DB DDL

4. Refine

-

5. Data script

- Data script

6. DB2 deploy

- DB2 DB migration


IBM DB2

3. DB2 MTK 0) DB2 MTK 3. DB2 MTK 0) DB2 MTK

- PC : Xwindows GUI

tool, Xterminal S/W .

- Server : JRE 1.3

-DISPLAY=:0.0

-CLASSPATH=$CLASSPATH:${ORACLE_HOME}/j

dbc/lib/classes12.zip

Oracle source DB .

MTK MTKMain >./MTKMain


IBM DB2

3. DB2 MTK 1) Project 3. DB2 MTK 1) Project

Migration project

-Project Name

Project -Project Path

( Project

)

-Source DB

Oracle, Sybase,MS SQL Server -DB2 target

Target DB2


IBM DB2

3. DB2 MTK 2) source 3. DB2 MTK 2) source

source DDL SQL file , Import sql file import.

DB metadata ,Extract .

Extract , popup , DB ., Database, Service name, , OK .


IBM DB2


Source DB , source DB objecttree ., Migration check

DDL file . . .

Extract .


IBM DB2


, .src file .View, delete .

Source , tab Convert .


IBM DB2

3. DB2 MTK 3) Convert3. DB2 MTK 3) Convert

, Convert .

Schema conversion data type mapping .Type .


IBM DB2

3. DB2 MTK 3) Convert3. DB2 MTK 3) Convert

type target type , , .


IBM DB2

3. DB2 MTK 4) Refine3. DB2 MTK 4) Refine

Convert refine .


IBM DB2

3. DB2 MTK 5) Generate Data Transfer scripts3. DB2 MTK 5) Generate Data Transfer scripts

Data .

script file

IMPORT / LOAD ( LOAD)

Data (INSERT/ REPLACE)

File format

Create Script script file .


IBM DB2

3. DB2 MTK SQL Translator 3. DB2 MTK SQL Translator

Conversion sql ., , table .

SQL .

Tools SQL Translator


IBM DB2

3. DB2 MTK Reporting 3. DB2 MTK Reporting

HTML reporting.

/projects//Reports/ .

- Conversion_asset.html : project report

- object

Database, Schema,Package,User type,Table,View,Column,Index,Foreign Key,Proc & Function,Trigger

- report

, report - Tablespace table rowsize report

- data .

table , target table . Table key table toggle, click .


IBM DB2

4. SQL conversion SQL Syntax : Sequence4. SQL conversion SQL Syntax : Sequence

.

NEXTVAL(CURRVAL) for Sequence_nameSequence_name.NEXTVAL(CURRVAL)

DB2Oracle


IBM DB2

4. SQL conversion SQL Syntax : rownum4. SQL conversion SQL Syntax : rownum

Rownum select, insert, update ,

- row_number() over() .

Rownum row ,

- row_number() over() , fetch first n rows only

Update ( select c1 from tab1 where c2=v2 fetch first 10 rows only)set c1=v1;

Update tab1 set c1=v1

where c2=v2 and rownum


IBM DB2

4. SQL conversion SQL Syntax : outer join4. SQL conversion SQL Syntax : outer join

Oracle (+) outer join

Oracle outer join table (+)

, DB2 .

Select a.last_name , a.id, b.name

From emp a left outer join customer b

on a.id=b.sales_rep_id

Where b.name like K%;


From emp a , customer b

Where a.id = b.sales_rep_id (+)

and b.name(+) like K% ;


From emp a full outer join customer b

on a.id=b.sales_rep_id ;



Where a.id(+) = b.sales_rep_id(+) ;


From emp a left outer join customer b




Where a.id = b.sales_rep_id(+) ;


From emp a right outer join customer b




Where a.id(+) = b.sales_rep_id ;

DB2Oracle


IBM DB2

4. SQL conversion SQL Syntax : dual table4. SQL conversion SQL Syntax : dual table

Oracle system information dual table ,

- DB2

SYSIBM.SYSDUMMY1 select VALUES

VALUES(current timestamp) into ;

Or

Select current timestamp

From sysibm.sysdummy1;

Select SYSDATE from DUAL;

DB2Oracle


IBM DB2

4. SQL conversion SQL Syntax : decode4. SQL conversion SQL Syntax : decode

Oracle decode DB2 CASE

Select avg (

case grade when A then 1 when B then 2 when C then 3 when D then 4 END)

From students;

Select avg ( decode ( grade, A,1,B,2,C,3,D,4))From students;

DB2Oracle


IBM DB2

4. SQL conversion SQL Syntax : nvl4. SQL conversion SQL Syntax : nvl

Oracle nvl DB2 COALESCE

Select coalesce(manager_id , No Manager)From employee;

Select Nvl(manager_id , No Manager)From employee;

DB2Oracle


IBM DB2

4. SQL conversion SQL Syntax : 4. SQL conversion SQL Syntax :

to_char UDF ora8.to_char

to_number int, decimal casting ora8.to_number

lpad, rpad UDF ora8.lpad(rpad)

trim ltrim / rtrim .

nvl COALESCE

- MTK ora8.*** , .

- UDF (user defined function) Logic ,

.

)

CREATE FUNCTION RPAD (C1 VarChar(4000), N integer, C2 VarChar(4000))RETURNS VARCHAR(4000) LANGUAGE SQLSPECIFIC RPADBaseDETERMINISTICCONTAINS SQLNO EXTERNAL ACTIONRETURN substr(C1 || repeat(C2,((sign(N-length(C1))+1)/2)*(N-length(C1)+length(C2))/(length(C2)+1-sign(length(C2)))),1,N) ;


IBM DB2

5. MTK Migration 5. MTK Migration

DB

IBM MTK DB migration .

Migration Migration DB tuning, .

Migration

SQL Oracle , .

SQL MTK SQL Translator .

IBM tool DB2 .


IBM DB2

5. MTK References5. MTK References

MTK Web Site

-http://www.ibm.com/db2/migration/mkt

Migration Station

-http://www.ibm.com/developerworks/ondemand/migrate/db.html

MTK Support, Mailbox : [email protected]


IBM DB2

MTK DemoMTK Demo

DEMO


IBM DB2

6. Access Guidelines: TBSCAN6. Access Guidelines: TBSCAN

Query: SELECT C1 FROM T1 /* */

Plan:

RETURN

|

TBSCAN

|

TABLE: DDEACONU

T1


IBM DB2

6. Access Guidelines: IXSCAN6. Access Guidelines: IXSCAN


Plan:

RETURN

|

IXSCAN

( 2)

|

INDEX: DDEACONU

T1_I1


IBM DB2


Plan:

RETURN

|

FETCH

/------------------+-----------------\

RIDSCN TABLE: DDEACONU T1

|

SORT

|

IXSCAN

|

INDEX: DDEACONU T1_I1

6. Access Guidelines: LPREFETCH6. Access Guidelines: LPREFETCH


IBM DB2

Query: SELECT C1 FROM T1 /*


IBM DB2

Query: SELECT T1 FROM T1 WHERE C1 = ? AND C2 = ?

Guideline:

/*

*/

Note: Indexes must be specified in a IXAND guideline.

6. Access Guidelines: IXAND6. Access Guidelines: IXAND


IBM DB2

Query: SELECT * FROM T1 WHERE C1 in (?,?)

Guideline: /* */

Note: We cannot specify indexes in an IXOR guideline

6. Access Guidelines: IXOR6. Access Guidelines: IXOR


IBM DB2

Query: select * from t1 join t2 on t1.c1 = t2.c1

Guideline: /* */

Guideline: /* */

Guideline: /* */

Guideline: /* */

6. Access Guidelines: JOIN6. Access Guidelines: JOIN


IBM DB2

Query: select * from t1, t2, t3 where t1.c1 = t3.c1 and t1.c1 = t2.c1

Guideline: /*

*/

Note: Make sure the tables joined are part of the same QTB

6. Access Guidelines: More complex Join 6. Access Guidelines: More complex Join


IBM DB2

6. More ways to reference tables: TABID attribute6. More ways to reference tables: TABID attribute

Query: SELECT * FROM T1

Rewriten query: SELECT Q1.C1 AS "C1", Q1.C2 AS "C2FROM DDEACONU.T1 AS Q1

Use of TABID attribute in an ACCESS hint:

SELECT * FROM T1 /* */

OR



IBM DB2

6. Specifying exposed names in ACCESS hints:6. Specifying exposed names in ACCESS hints:

Query: SELECT * FROM T1 as TAB

Use of exposed name in an ACCESS hint:


Note:

SELECT * FROM T1 /* */Will return SQL0437 rc13, EXP0009W: TABLE attribute not found


IBM DB2

6. Accessing base tables through views:6. Accessing base tables through views:

Tables, indexes and views:

CREATE TABLE T1 (C1 INT, C2 INT);

CREATE INDEX T1_I1 ON T1 (C1);

CREATE VIEW V1 AS SELECT * FROM T1 as TAB;

CREATE VIEW V2 AS SELECT C1 FROM V1;

Query:

SELECT C1 FROM v2 /*

*/;


IBM DB2

7. User Defined Function C sample7. User Defined Function C samplevoid SQL_API_FN ToNum ( SQLUDF_DOUBLE *inAmt

, SQLUDF_CHAR *outVal, SQLUDF_SMALLINT *amtNullInd, SQLUDF_SMALLINT *valNullInd, SQLUDF_TRAIL_ARGS_ALL, SQLUDF_DBINFO *dbinfo)

{int intvalue, charlen;int i, j,k;char charvalue[30], *charp, *retp, *retvalue;char format[30];

sprintf(charvalue, "%f", *inAmt);for ( k = 0 ; k < strlen(charvalue) ; k++ ) if ( charvalue[k] == '.' ) break;charlen = k;

retp = retvalue = (char *)malloc(charlen + charlen/3 + 5);

charp = charvalue;

if (charvalue[0] == '-') {*retp++ = *charp++;charlen -= 1;

}

while (charlen > 3) {i = charlen % 3;if (i == 0)

i = 3;for (j=0; j


IBM DB2

7. User Defined Function C sample7. User Defined Function C samplevoid SQL_API_FN ToHg ( SQLUDF_DOUBLE *inAmt

, SQLUDF_CHAR *outVal, SQLUDF_SMALLINT *amtNullInd, SQLUDF_SMALLINT *valNullInd, SQLUDF_TRAIL_ARGS_ALL, SQLUDF_DBINFO *dbinfo)

{

/*static char *suja[]={"","","","","","","","","",""};static char *suja[]={"","","","","","","","","",""};*/static char *suja[]={"","","","","","","","","",""};

char charvalue[100], *charp;char retv[100], *retp, *returnvalue;char tmp_su[1];int charlen,cur_num;int i,j,k;

memset(retv,0x00,sizeof(retv));retp = returnvalue = retv;

sprintf( charvalue,"%f", *inAmt);charp = charvalue;

for ( i = 0; i < strlen(charvalue); i++ ) if ( charvalue[i] == '.' ) break;charlen = i;

if ( charvalue[0] == '-' ) {sprintf(retp,"%c",*charp++);retp += strlen(retp);charlen--;

}


IBM DB2

7. User Defined Function C sample7. User Defined Function C sample

while ( charlen > 0 ) {i = charlen % 4 ;if ( i == 0 ) i = 4;k = i;for ( j = 0; j < i ; j++ ) {

sprintf(tmp_su,"%c",*charp++);cur_num = atoi(tmp_su);

if ((cur_num>=1)&&(cur_num


IBM DB2

7. User Defined Function C sample7. User Defined Function C sample

# Build proceduredb2 connect to sample

db2 prep kc.sqc bindfiledb2 bind kc.bnd

cl -Zi -Od -c -W2 -DWIN32 -MD kc.c

link -debug -out:kc.dll -dll kc.obj db2api.lib -def:kc.defcopy kc.dll "C:\Program Files\IBM\SQLLIB\FUNCTION"

CREATE FUNCTION TOHG(DOUBLE)RETURNS VARCHAR(45)EXTERNAL NAME 'kc!ToHg'FENCEDLANGUAGE CPARAMETER STYLE SQL DETERMINISTICNO SQLNO EXTERNAL ACTIONALLOW PARALLEL DBINFO;

CREATE FUNCTION ToHg(INTEGER)RETURNS VARCHAR(45)SOURCE TOHG(DOUBLE);

CREATE FUNCTION ToHg(SMALLINT)RETURNS VARCHAR(45)SOURCE TOHG(DOUBLE);

CREATE FUNCTION TONUM(DOUBLE)RETURNS VARCHAR(45)EXTERNAL NAME 'kc!ToNum'FENCEDLANGUAGE CPARAMETER STYLE SQL DETERMINISTICNO SQLNO EXTERNAL ACTIONALLOW PARALLEL DBINFO;

CREATE FUNCTION TONUM(INTEGER)RETURNS VARCHAR(45)SOURCE TONUM(DOUBLE);

CREATE FUNCTION TONUM(SMALLINT)RETURNS VARCHAR(45)SOURCE TONUM(DOUBLE);


IBM DB2

8. DBMS 8. DBMS

WFS DEMO

-------------------------------------------------------------------------------------------------------------------------------- ------------------------------------------------------------------------------------------------------------------------------connect to sample;drop wrapper net8;

create wrapper net8;

CREATE SERVER ORCL_SVR TYPE ORACLE VERSION 10WRAPPER NET8--AUTHORIZATION SCOTT PASSWORD TIGEROPTIONS(NODE 'orcl'

, ADD CPU_RATIO '1.0', COLLATING_SEQUENCE 'N', IO_RATIO '1.0', COMM_RATE '1.0', DB2_TWO_PHASE_COMMIT 'Y', VARCHAR_NO_TRAILING_BLANKS 'N', PUSHDOWN 'Y', DB2_MAXIMAL_PUSHDOWN 'Y');

create user mapping for user server orcl_svroptions ( remote_authid 'scott', remote_password 'tiger');

commit;


IBM DB2

8. DBMS 8. DBMS

-------------------------------------------------------------------------------------------------------------------------------- Table : Nickname ------------------------------------------------------------------------------------------------------------------------------

create nickname ora_dept for orcl_svr.scott.dept;create nickname ora_emp for orcl_svr.scott.emp;

commit;

-------------------------------------------------------------------------------------------------------------------------------- Table : Data ------------------------------------------------------------------------------------------------------------------------------

drop table db2_dept ;drop table db2_emp ;create table db2_dept like ora_dept;create table db2_emp like ora_emp ;

insert into db2_dept select * from ora_dept;insert into db2_emp select * from ora_emp ;

export to ora_dept.del of del select * from ora_dept;export to ora_emp.del of del select * from ora_emp;

commit;


IBM DB2

8. DBMS 8. DBMS

-------------------------------------------------------------------------------------------------------------------------------- Table : Query ------------------------------------------------------------------------------------------------------------------------------

select empno, ename, job, a.deptno, b.dnamefrom ora_emp a, ora_dept b

where a.deptno = b.deptno;

select empno, ename, job, a.deptno, b.dnamefrom db2_emp a, db2_dept b


select empno, ename, job, a.deptno, b.dnamefrom ora_emp a, db2_dept b


select empno, ename, job, a.deptno, b.dnamefrom db2_emp a, ora_dept b


commit;


IBM DB2

8. DBMS 8. DBMS

--------------------------------------------------------------

--------------------------------------------------------------

--

-- set passthru :

--

--------------------------------------------------------------

--------------------------------------------------------------

set passthru orcl_svr;

drop table employee;

drop table department;

select * from tab;

select * from all_users;

set passthru reset;

select * from tab;

select * from all_users;

commit;


IBM DB2

9. SQL 9. SQL

Data Type

- DECFLOAT(16) / DECFLOAT(32)

Function

- ROWID

- ROW CHANGE TOKEN / ROW CHANGE TIMESTAMP

- TO_CHAR / TO_DATE

- START WITH name = 'Goyal'

- CONNECT BY PRIOR empid = mgrid

- ORDER SIBLINGS BY salary;

- FETCH FIRST n ROWS / ROW_NUMBER() / ROWNUM

- NVL / DECODE

- LEAST / GREATEST

- BITAND, BITANDNOT, BITOR, BITXOR, BITNOT


IBM DB2

9. SQL 9. SQL

DUAL

- select current date from dual

Outer Join (+)

- select * from org a, org2 b where a.deptnumb = b.deptnumb

- select * from org a, org2 b where a.deptnumb(+) = b.deptnumb

- select * from org a, org2 b where a.deptnumb = b.deptnumb(+)

SEQUENCE

- sequence-name.NEXTVAL can be specified in place of NEXT VALUE FOR sequence-name

- sequence-name.CURRVAL can be specified in place of PREVIOUS VALUE FOR sequence-

name


IBM DB2

9. SQL 9. SQL

SELECT

LEVEL

, cast(SYS_CONNECT_BY_PATH(Name, '-') as char(30))AS Path

, EMPNO, MGR

FROM EMP3

START WITH EMPNO = 7839

CONNECT BY PRIOR EMPNO = MGR

Order siblings by name

;

SELECT LEVEL

,cast(SYS_CONNECT_BY_PATH(Name, '-') as char(30))AS Path

,empno, mgr, Name

FROM EMP3

START WITH Name = 'KING'

CONNECT BY PRIOR empno = mgr

ORDER SIBLINGS BY Name

;


IBM DB2

Q&AQ&A

Q&AQ&A

Documents

DB2Migration 절차, 방법및MTK 소개 -타DBMS와연계 -SQL ... migration 절차및방법 DB2 Migration 단계7. Test 및검증 -기존운영환경데이터의손실없이application이동일하게동작되는지검사합니다