IBM DB2 to MariaDB Migration

SQLines tools can help you transfer data, convert database schema (DDL), views, stored procedures (SPL and COBOL), functions, triggers, queries and SQL scripts from IBM DB2 to MariaDB.

SQLines Data - Data transfer, schema migration and validation tool
SQLines SQL Converter - SQL scripts assessment and conversion tool

Databases:

IBM DB2 for LUW, z/OS and OS/400 11.x, 10.x, 9.x, 8.x and 7.x
MariaDB 10.x

DB2 to MariaDB Migration Reference

Data Types

Character data types:

	DB2		MariaDB
1	GRAPHIC(n)	Fixed-length UTF-16 string, 1 <= n <= 128	CHAR(n)
2	VARCHAR(n OCTETS)	Variable-length string in bytes, 1 <= n <= 32672	VARCHAR(n)	n <= 65535 in characters
3	VARGRAPHIC(n)	Variable-length UTF-16 string, 1 <= n <= 16336	VARCHAR(n)

Binary data types:

	DB2		MariaDB
1	VARCHAR(n) FOR BIT DATA	Variable-length binary string, 1 ⇐ n ⇐ 32672	VARBINARY(n)	n ⇐ 65535

Numeric data types:

	DB2		MariaDB
1	BIGINT	64-bit integer	BIGINT
2	DECFLOAT(16 \| 34)	IEEE decimal floating-point number	DOUBLE
3	INT, INTEGER	32-bit integer	INT, INTEGER
4	SMALLINT	16-bit integer	SMALLINT

Data and time data types:

	DB2		MariaDB
1	DATE	Date (year, month and day)	DATE
2	TIMESTAMP(p)	Date and time with fraction, 0 <= p <= 12 , default 6	DATETIME(p)	p <= 6

Large objects data types:

	DB2		MariaDB
1	BLOB(n)	Binary large object, 1 ⇐ n ⇐ 2G	LONGBLOB

CREATE TABLE Statement

Converting CREATE TABLE statement from DB2 to MariaDB:

	DB2		MariaDB
1	GENERATED AS IDENTITY	Identity column	AUTO_INCREMENT

Data type attributes:

	DB2		MariaDB
1	FOR BIT DATA	Binary data encoding	Removed
1	FOR SBCS \| MIXED DATA	Column data encoding (z/OS)	Removed
2	CCSID ASCII \| UNICODE \| EBCDIC	Character set	Removed
2	CCSID num	Column character set (OS/400)	Removed

Implicit DEFAULT values in DB2:

	DB2	MariaDB
1	col_name CHAR(n) WITH DEFAULT	col_name CHAR(n) DEFAULT ''
2	col_name VARCHAR(n) WITH DEFAULT	col_name VARCHAR(n) DEFAULT ''
3	col_name INTEGER WITH DEFAULT	col_name INTEGER DEFAULT 0
4	col_name DECIMAL(p, s) WITH DEFAULT	col_name DECIMAL(p, s) DEFAULT 0
5	col_name NUMERIC(p, s) WITH DEFAULT	col_name NUMERIC(p, s) DEFAULT 0
6	col_name DATE WITH DEFAULT	col_name DATE DEFAULT CURRENT_DATE
7	col_name TIMESTAMP WITH DEFAULT	col_name TIMESTAMP DEFAULT CURRENT_TIMESTAMP

SQLines SQL Converter

SQLines Data

Migration to MariaDB

Migration to Oracle

Migration to SQL Server

Migration to MySQL

Migration to PostgreSQL

Migration to IBM DB2

Migration to Redshift

Migration to Databricks

Migration to Snowflake

Migration to Spark

Migration to Presto/Trino

Migration to Netezza

Migration to Greenplum

Migration to SingleStore

Application Conversion

Database Reference

IBM DB2 to MariaDB Migration

DB2 to MariaDB Migration Reference

Data Types

CREATE TABLE Statement