jadahbakar / shandy-db2

Golang - Ibm db2

Table of Contents

1. About The Project
   • Built With
2. Getting Started
   • Prerequisites
   • Installation
3. License
4. Contact
5. Acknowledgements

About The Project

This system is using for testing Golang connection with Ibm db2 database, which ibm db2 database installed on docker.

Built With

This section we explain what is backend is develop with

• Golang
• Connector
• Db2
• Db2 - Docker

Getting Started

This is an example of how you may give instructions on setting up your project locally. To get a local copy up and running follow these simple example steps.

Prerequisites

• First you need to install Golang

• After that check the installation and Golang version it must be above than 1.11 because we need the Golang Modules

  > go version
  go version go1.16.3 darwin/amd64

• Create docker volume

    docker volume create ibm-data

• Install db2 on docker

    docker run -d --restart=always --name=ibm-exp --privileged=true -p 50000:50000 -e LICENSE=accept -e DB2INST1_PASSWORD=password -e DBNAME=testdb -v ibm-data:/database ibmcom/db2

• Check the logs

    ❯ docker logs ibm-exp | grep "Setup"

            (*) Setup has completed.


        _________________________________________________________________________

                            _____   DB2 Service Tools   _____

                                    I      B      M

                                    db2updv115

        This tool is a service utility designed to update a DB2 Version 11.5
        database to the current fix pack level.

        _________________________________________________________________________

• Enter the docker console for the db2 instance

    ❯ docker exec -it ibm-exp bash -c "su - db2inst1"
    Last login: Sun Aug  8 15:12:47 UTC 2021 on pts/0
    [db2inst1@da30f52444ce ~]$

• Check 1

    [db2inst1@da30f52444ce ~]$ db2 get dbm cfg|grep SVCENAME
    TCP/IP Service name                          (SVCENAME) = db2c_db2inst1
    SSL service name                         (SSL_SVCENAME) =

• Check 2

    [db2inst1@da30f52444ce ~]$ cat /etc/services | grep db2c_db2inst1
    db2c_db2inst1      50000/tcp
    db2c_db2inst1_ssl  50001/tcp
    [db2inst1@da30f52444ce ~]$

• Check 3

    [db2inst1@da30f52444ce ~]$ db2 list db directory

    System Database Directory

    Number of entries in the directory = 1

    Database 1 entry:

    Database alias                       = TESTDB
    Database name                        = TESTDB
    Local database directory             = /database/data
    Database release level               = 15.00
    Comment                              =
    Directory entry type                 = Indirect
    Catalog database partition number    = 0
    Alternate server hostname            =
    Alternate server port number         =

    [db2inst1@da30f52444ce ~]$

• Check 4 - Connect to the database from docker console

    [db2inst1@da30f52444ce ~]$ db2 connect to testdb

            Database Connection Information

        Database server        = DB2/LINUXX8664 11.5.6.0
        SQL authorization ID   = DB2INST1
        Local database alias   = TESTDB

        [db2inst1@da30f52444ce ~]$

Installation

• Install Db2 Driver for my Mac OS

   ❯ go get -d github.com/ibmdb/go_ibm_db

• Download the Db2 Driver from ibm

• Add the Db2 installation path at the bottom, and make sure the dspath is correct

    ❯ nano ~/.zshrc
    # ibm db2 driver
    export DB2HOME=/Applications/dsdriver
    export CGO_CFLAGS=-I$DB2HOME/include
    export CGO_LDFLAGS=-L$DB2HOME/lib
    export DYLD_LIBRARY_PATH=$DYLD_LIBRARY_PATH:/Applications/dsdriver/lib
    
    ❯ source  ~/.zshrc

• Done, try run the program

    ❯ go run main.go
    NIM    NAMA   
    -------------------------------------
    1  satu   

License

MIT.

Contact

Dedy Styawan - dedy.styawan - [email protected]

Shandy Siswandi - shandysiswandi - [email protected]

Acknowledgements

• Installing Db2 on your coffee break
• DB2 Connection refused
• Installing Db2 on macOS Using Docker
• Installing Db2 on your coffee break
• Installing the Db2 driver package on Mac OS X