Data Migration To MySQL Anil Yadav OSSCube

What is Migration? Data migration is the process of transferring data between storage types, formats, or computer systems.

Data migration is the process of transferring data between storage types, formats, or computer systems.

Why MySQL? Cost EOL H/W and S/W Integration to newer system Trend Supports all features now (Reason)

Cost

EOL H/W and S/W

Integration to newer system

Trend

Supports all features now (Reason)

Migration Checklist What are characteristics of the application? OLTP, Data warehouse etc How quickly do you need to migrate? Weeks, Months What tools are available too perform the migration? ETL, Scripts, ER Tools, Manual How many objects will be migrated? Tables, Indexes, Views, Stored Procedures Triggers, Sequences, Others

What are characteristics of the application?

OLTP, Data warehouse etc

How quickly do you need to migrate?

Weeks, Months

What tools are available too perform the migration?

ETL, Scripts, ER Tools, Manual

How many objects will be migrated?

Tables, Indexes, Views, Stored Procedures

Triggers, Sequences, Others

Migration Checklist How large is the database? MB, GB, TB Are you looking to increase capacity or scalability? If so, how much? How many concurrent users?

How large is the database?

MB, GB, TB

Are you looking to increase capacity or scalability?

If so, how much?

How many concurrent users?

Data Migration Life Cycle Document Source Objects Relationship Rules Design targets Objects Relationship Rules Design ETL Flow Simple move Transformation Aggregation Build/Run Migrations ETL Runs Scheduled/Recurring Validation Migrate Code? Performance Test Simulation Metric Analysis Review

Document Source

Objects

Relationship

Rules

Migration from Oracle

Migration from Oracle

How to Migrate? Manually Automated MySQL Migration tool kit SwissSQL SQLWays

Manually

Automated

MySQL Migration tool kit

SwissSQL

SQLWays

Oracle Datatypes Oracle 10g supports 22 native datatypes MySQL supports most except . INTERVAL DAY TO SECOND INTERVAL YEAR TO M MONTH ROWID TIMESTAMP WITH LOCAL TIME ZONE TIMESTAMP WITH TIM ME ZONE UROWID

Oracle 10g supports 22 native datatypes

MySQL supports most except .

INTERVAL DAY TO SECOND

INTERVAL YEAR TO M MONTH

ROWID

TIMESTAMP WITH LOCAL TIME ZONE

TIMESTAMP WITH TIM ME ZONE

UROWID

Oracle Compatible Datatype MEDIUMTEXT CLOB, RAW REAL FLOAT (24) VARCHAR VARCHAR2 MEDIUM OR LONGBLOB LONG RAW BLOB RAW LONGBLOB BLOB LONGBLOB BFILE MySQL Oracle

Oracle Predicates Supported by MySQL Comparison conditions Exists conditions Floating-point conditions In conditions Is/member conditions Null conditions Pattern matching conditionss Range conditions XML conditions

Comparison conditions

Exists conditions

Floating-point conditions

In conditions

Is/member conditions

Null conditions

Pattern matching conditionss

Range conditions

XML conditions

Constraint There are some constraint for migration. MySQL does not support some major function. Package No Raise error capability Mail sending Application error generation Exception handling Is there any solution for above?

There are some constraint for migration. MySQL does not support some major function.

Package

No Raise error capability

Mail sending

Application error generation

Exception handling

Is there any solution for above?

Migration Using MySQL Migration tool kit

Migration Using MySQL Migration tool kit

Migration using MySQL Migration Toolkit Open Source Does Tables/View Data Does Not (Yet) Sequence Stored procedure Trigger

Open Source

Does

Tables/View

Data

Does Not (Yet)

Sequence

Stored procedure

Trigger

Migration Using MySQL migration tool kit Choose Source Database

Migration Using MySQL migration tool kit Choose Target Database

Migration Using MySQL migration tool kit Choose Schema To Migrate

Migration Using MySQL migration tool kit Select Object to Migrate

Migration Using MySQL migration tool kit Select Migration Method

Migration Using MySQL migration tool kit Create MySQL Target Objects

Migration Using MySQL migration tool kit Migrate Data to MySQL

Migration Using MySQL migration tool kit Review Migration

Migration using other tool Some Object can not migrate using MySQL migration tool kit. Stored procedure Function Sequence Package Trigger Write code manually or use other tool

Some Object can not migrate using MySQL migration tool kit.

Stored procedure

Function

Sequence

Package

Trigger

Write code manually or use other tool

Migration using other tool SQLWays can migrate following object alos Stored Procedure Function Sequence Still no tool available to migrate Package Trigger We have alternative for package and triggers.

SQLWays can migrate following object alos

Stored Procedure

Function

Sequence

Still no tool available to migrate

Package

Trigger

We have alternative for package and triggers.

Any Question?

Any Question?

Thank You!