How do I create an alternate key in Oracle?
- How do I set up alternate key?
- What is alternate key in Oracle?
- How do I create an alternate key in SQL?
- How do you define alternate key?
How do I set up alternate key?
Rules for Alternate Key1The alternate key is a part of a candidate key but not a part of the primary key.2Defined by “UNIQUE”.3Alternate keys values should be unique.4If a table consists of only one candidate key, then it becomes the primary key; there will be no alternate key.
What is alternate key in Oracle?
An alternate key (or secondary key) is any candidate key which is not selected to be the primary key (PK). You cant create an alternate key in Oracle, its just conceptual.
How do I create an alternate key in SQL?
Creating Alternate Keys1Open the property sheet of a table and select the Columns tab.2Select the column or columns to associate with the alternate key and click the Create Key tool. ... 3Enter a name for the key. ... 4[optional] Modify the default Constraint Name.
How do you define alternate key?
An alternate key (Alt key) is a key that is present on most computer keyboards and is considered a modifier key that can used similarly to the shift or control keys. In other words, the alternate key provides alternate input and operations when pressed in combination with other keys.
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