Practical Advice for Maintaining and Migrating Working Code Changing Legacy Code with Confidence: Brian Ruth (he/him) brian.ruth@garmin.comPart 0: Legacy Code• It works* • It may not

Yes All elements are equal 64.2WHAT ARE WE CHANGING? 65WHAT ARE WE CHANGING? A�er these cleanups we can change to any sort 65.1WHAT ARE WE CHANGING? A�er these cleanups we can change to any sort

features. Note: Perpetual License and Subscription Plan cannot be used at the same Navicat. Before changing the registration method, you need to deactivate the license key or sign out your Navicat ID. Prevent DDL operations on the table. Enable Row Movement Allow the database to move a row, thus changing the rowid. Disable Row Movement Prevent the database from moving a row, thus preventing a change Materialized View Option Description Enable Row Movement Allow the database to move a row, thus changing the rowid. Disable Row Movement Prevent the database from moving a row, thus preventing a change

features. Note: Perpetual License and Subscription Plan cannot be used at the same Navicat. Before changing the registration method, you need to deactivate the license key or sign out your Navicat ID. Prevent DDL operations on the table. Enable Row Movement Allow the database to move a row, thus changing the rowid. Disable Row Movement Prevent the database from moving a row, thus preventing a change Materialized View Option Description Enable Row Movement Allow the database to move a row, thus changing the rowid. Disable Row Movement Prevent the database from moving a row, thus preventing a change

features. Note: Perpetual License and Subscription Plan cannot be used at the same Navicat. Before changing the registration method, you need to deactivate the license key or sign out your Navicat ID. Prevent DDL operations on the table. Enable Row Movement Allow the database to move a row, thus changing the rowid. Disable Row Movement Prevent the database from moving a row, thus preventing a change Materialized View Option Description Enable Row Movement Allow the database to move a row, thus changing the rowid. Disable Row Movement Prevent the database from moving a row, thus preventing a change

with note left of , note right of or note over keywords. It is possible to highlight a note by changing its background color. You can also have a multi-line note using the end note keywords. @startuml note @enduml PlantUML Language Reference Guide (1.2020.22) 10 / 298 1.14 Changing notes shape 1 SEQUENCE DIAGRAM 1.14 Changing notes shape You can use hnote and rnote keywords to change note shapes. ActorFontSize 17 ActorFontName Aapex } PlantUML Language Reference Guide (1.2020.22) 25 / 298 1.32 Changing padding 1 SEQUENCE DIAGRAM actor User participant "First Class" as A participant "Second Class"

with note left of , note right of or note over keywords. It is possible to highlight a note by changing its background color. You can also have a multi-line note using the end note keywords. @startuml note @enduml PlantUML Language Reference Guide (1.2020.23) 11 / 310 1.15 Changing notes shape 1 SEQUENCE DIAGRAM 1.15 Changing notes shape You can use hnote and rnote keywords to change note shapes. ParticipantFontSize 17 ParticipantFontColor #A9DCDF PlantUML Language Reference Guide (1.2020.23) 27 / 310 1.34 Changing padding 1 SEQUENCE DIAGRAM ActorBackgroundColor aqua ActorFontColor DeepSkyBlue ActorFontSize 17

with note left of , note right of or note over keywords. It is possible to highlight a note by changing its background color. You can also have a multi-line note using the end note keywords. @startuml PlantUML Language Reference Guide (1.2021.2) 11 / 415 1.15 Changing notes shape [hnote, rnote] 1 SEQUENCE DIAGRAM end note @enduml 1.15 Changing notes shape [hnote, rnote] You can use hnote and rnote keywords Reference Guide (1.2021.2) 30 / 415 1.36 Changing padding 1 SEQUENCE DIAGRAM B --> A: Request Created deactivate B A --> User: Done deactivate A @enduml 1.36 Changing padding It is possible to tune some

with note left of , note right of or note over keywords. It is possible to highlight a note by changing its background color. You can also have a multi-line note using the end note keywords. @startuml PlantUML Language Reference Guide (1.2021.1) 11 / 391 1.15 Changing notes shape [hnote, rnote] 1 SEQUENCE DIAGRAM end note @enduml 1.15 Changing notes shape [hnote, rnote] You can use hnote and rnote keywords Reference Guide (1.2021.1) 29 / 391 1.36 Changing padding 1 SEQUENCE DIAGRAM B --> A: Request Created deactivate B A --> User: Done deactivate A @enduml 1.36 Changing padding It is possible to tune some

with note left of , note right of or note over keywords. It is possible to highlight a note by changing its background color. You can also have a multi-line note using the end note keywords. @startuml PlantUML Language Reference Guide (1.2021.2) 11 / 397 1.15 Changing notes shape [hnote, rnote] 1 SEQUENCE DIAGRAM end note @enduml 1.15 Changing notes shape [hnote, rnote] You can use hnote and rnote keywords Reference Guide (1.2021.2) 29 / 397 1.36 Changing padding 1 SEQUENCE DIAGRAM B --> A: Request Created deactivate B A --> User: Done deactivate A @enduml 1.36 Changing padding It is possible to tune some