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Introducing Geographic Information Systems with ArcGIS: A Workbook Approach to Learning GIS, 3rd Edition by Michael D. Kennedy

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Selecting Records (and, Thereby, Features)
(A lot of what follows is review and practice. It provides the sort of information that needs to become second nature to you as you operate the software.)
A record is selected if it is highlighted in cyan. Any number of records may be selected—from none to all—or any combination in between.
____ 12. Experiment with various ways of selecting records: In the Table, click the gray box at the left of any record. The entire record is selected. Click another box of another record, and that record is selected instead. If you hold down the Ctrl key and click the box of an unselected record, it is added to those already selected. If you hold down the Ctrl key and click the box of a selected record, it is deselected. If you hold down the Ctrl key and drag the cursor over consecutive boxes, the selected records are deselected and the unselected records are selected. The number of selected records is shown at the bottom of the table. Also at the bottom of the table, you can choose whether the window displays all the records or only those selected. Choose records with OBJECTIDs 2, 3, 5, 7, 11, 13, 17, 19, and 23. Show only those selected records. Then show all records.
____ 13. Use simple logic to select records: Press the Table Options button on the table window. Press Switch Selection. Note that all records except 2, 3, 5, 7, 11, 13, 17, 19, and 23 are selected. Now switch the selections in a different way: press the Switch Selection button ...

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