tailieunhanh - Knovel Application Help File

The relationships between columns in different tables are typically described through the use of keys, which are implemented through referential integrity constraints and their supporting indexes. For example, in Figure 1-2, you can establish a link between the DEPTNO column in the second table, which is called a foreign key,to the DEPTNO column in the first table, which is referred to as the primary key of that table. Finally, even if you define many different indexes for a table, you don’t have to understand them or manage the data they contain. Oracle includes a query optimizer (described in Chapter 4) that chooses the best way to use your. | Knovel Application Help File Table of Contents 1 TYPES OF ACCESSING 2 LOGGING IN AND Logging Trouble Logging Logging 3 SITE REQUIREMENTS AND Platforms .10 Browsers .10 PDF Portable Document Format Pop-Up 4KNOVEL 5 INTERACTIVE with an equation with a Graph Interactive Interactive Tables from Search Hidden USING THE Navigation Rows as Search Results in Selecting Sorting a Showing Hiding Filtering Resizing Column Table Table 6PRODUCTIVITY Axis Labels and New Coordinates and Saved to the Graph Points on the Graph and Coordinates in the Sampled Points Y Values from X Precision Changing Significant Digits .52 Coordinates and Coordinates .54 Coordinates .55 Linear or Changing the Graph Grid .