Database version control DPC version

Database Version Control Without Pain Harrie Verveer June 11th 2010

Database Version Control What’s the problem? 2

http://www.sxc.hu/photo/754535

http://en.wikipedia.org/wiki/File:STS120LaunchHiRes.jpg

Why Database Version Control 7

Simple Patching Strategy The basic idea 8

Simple patching strategy 9

Example patch file patch-001.sql 10

Simple patching strategy Development Write code Write DB patches Apply patches to own DB Apply patches Commit Update 12

Fixing patches patch-002.sql 13

Fixing patches patch-003.sql 14

Fixing patches patch-003.sql Never modify a patch file once it’s under version control 14

Undo patch files undo-001.sql 15

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Bonus points Install.sql 17

Bonus points Initial dummy content 18

Automating the process Faster & Safer 21

Typical patch script 23

Typical patch script update.sh 24

Branches Merge problems 26

Branches Trunk patch-001.sql patch-002.sql patch-003.sql 27

Branches Trunk patch-001.sql patch-002.sql patch-003.sql Branch A create branch patch-004.sql patch-004.sql patch-005.sql patch-005.sql Merge 28

Branches Trunk patch-001.sql patch-002.sql patch-003.sql Branch A create branch patch-004.sql patch-006.sql patch-004.sql patch-005.sql patch-007.sql patch-005.sql Merge 28

Branches Trunk patch-001.sql Branch A create branch patch-002.sql patch-002.sql patch-003.sql Branch B create branch patch-003.sql Merge patch-004.sql patch-004.sql patch-004.sql patch-005.sql patch-005.sql Merge patch-005.sql Merge Merge 29

Separate sequence db/patches/trunk/ db/patches/branchA/ patch-001.sql patch-001.sql patch-002.sql patch-002.sql patch-003.sql 30

Separate sequence db/patches/trunk/ db/patches/branchA/ patch-001.sql patch-001.sql patch-002.sql patch-002.sql patch-003.sql Trunk version 3 BranchA version 2 30

Patchfile naming patch_20100611_1430.sql 31

Patch log 32

Phing & DB Deploy Avoiding the NIH syndrome 34

http://phing.info/ 35

Phing 36

DB Deploy 38

DB Deploy db/patches/1-create_user_table.sql 39

Phing & DB Deploy 40

DB Deploy changelog table: 41

DB Deploy PHP 42

DB Deploy SQL 43

DB Deploy Features 44

Liquibase A different approach 45

Liquibase www.liquibase.org 46

Liquibase 47

Liquibase 48

Liquibase 49

Liquibase Updating Reverting Tagging Generate XML Diff 50

Liquibase Branches 52

Liquibase DBMS Support 53

Liquibase Documentation 54

Liquibase Java 55

Akrabat DB Schema Manager Zend Framework specific solution 56

Akrabat DB Schema Manager Zend Framework Proposed by Rob Allen in 2006 Recently implemented Might be in ZF in the near future http://github.com/akrabat/Akrabat 57

Writing the patch scripts/migrations/001-CreateUserTable.php 58

Writing the patch scripts/migrations/001-CreateUserTable.php 59

Akrabat DB Schema Manager PHP Patches 60

Akrabat DB Schema Manager Easy syntax if you know ZF 61

Akrabat DB Schema Manager Easy to use 62

Akrabat DB Schema Manager Branch merging 63

Doctrine Migrations 64

Doctrine Migrations http://www.doctrine-project.org/ 65

Doctrine Migrations 66

Doctrine Migrations Update-to-version 67

Doctrine Migrations Generate patches 68

Doctrine Migrations Useful if you’re already using Doctrine ORM 69

Summary 70

Summary Patchfiles Akrabat DB Schema Manager http://akrabat.com • Automating http://github.com/akrabat/Akrabat • Branch merging Doctrine Migrations Phing + DB Deploy http://www.doctrine-project.org http://phing.info http://dbdeploy.com Liquibase http://www.liquibase.org 71

Questions ? 72

Contact me Harrie Verveer Software Engineer at Ibuildings E-mail: harrie@ibuildings.nl Skype: harrie-ibuildings Twitter: @harrieverveer http://joind.in/1544 73

Database version control DPC version

by Harrie Verveer on Jun 14, 2010

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