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Joining/Linking a Table ArcView_module_8 May 14, 10:40 AM.

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Presentation on theme: "Joining/Linking a Table ArcView_module_8 May 14, 10:40 AM."— Presentation transcript:

1 Joining/Linking a Table ArcView_module_8 May 14, 10:40 AM

2 Outline Possible relations between tables Requirements for joining a table How to join a table in ArcView How to link a table in ArcView

3 Table Join + Destination Table Source Table Join Destination Table Source table is appended to the destination table based on common field here, FIPS code What is Table Join?

4 One-to-one relation Possible Relations between Destination and Source Tables Destination TableSource Table

5 Many-to-one relation Possible Relations between Destination and Source Tables Destination TableSource Table

6 One-to-many relation Possible Relations between Destination and Source Tables Destination TableSource Table Which one to choose?

7 One-to-many relation Possible Relations between Destination and Source Tables Destination Table Source Table First matching row Join You lose information

8 Requirements for Table Join One-to-one or many-to-one relations between the destination table and source table Same field type for the common fields

9 How it works How to Join a Table in ArcView + Destination Table Source Table Join Destination Table Source table is virtually appended to the Destination table based on the common field

10 How to join  Make the common field active in the source table (most recent active table)  Make the common field active in the destination table (active table)  Choose Join button How to Join a Table in ArcView

11 One-to-many relations How to Link a Table in ArcView Destination Table Source Table e.g. A company owns multiple properties

12 How it works ArcView defines a relationship between two tables, rather than appending the fields of the source table to those in the destination How to Link a Table in ArcView You can check if they are linked by selecting records in the destination table; it will automatically select records in the linked source table

13 How to link  Make the common field active in the source table (most recent active table)  Make the common field active in the destination table (active table)  Choose the Link from the Table menu How to Link a Table in ArcView


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