Answers for Applications Manager Database Online Test - Online Exam - Online Quiz - Mock Test
←Go Back to Online Practice Test| Ques. What is the primary key in a database? |
| Option 1. A field that uniquely identifies each record in a table |
| Option 2. A field that stores numeric data only |
| Option 3. A field that is used for sorting records alphabetically |
| Option 4. A field that allows null values |
Ans. Option 1 |
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