Database Management Exam > Database Management Videos > Microsoft SQL for Beginners > SQL Tutorial - 17: Logical Operators (Part-1)
SQL Tutorial - 17: Logical Operators (Part-1) Video Lecture | Microsoft SQL for Beginners - Database Management
FAQs on SQL Tutorial - 17: Logical Operators (Part-1) Video Lecture - Microsoft SQL for Beginners - Database Management
| 1. What are logical operators in SQL? |  |
Ans. Logical operators in SQL are used to combine multiple conditions in a query. They help in filtering and retrieving data based on certain criteria. The three commonly used logical operators in SQL are AND, OR, and NOT.
| 2. How does the AND operator work in SQL? | |
Ans. The AND operator in SQL is used to combine two or more conditions in a query. It returns true only if all the conditions separated by AND are true. For example, if we have two conditions A and B, the query will only return rows where both condition A and condition B are true.
| 3. What is the purpose of the OR operator in SQL? | |
Ans. The OR operator in SQL is used to combine two or more conditions in a query. It returns true if any of the conditions separated by OR is true. For example, if we have two conditions A and B, the query will return rows where either condition A or condition B or both are true.
| 4. How can the NOT operator be used in SQL? | |
Ans. The NOT operator in SQL is used to negate a condition. It returns true if the condition following the NOT operator is false. For example, if we have a condition A, the query with NOT A will return rows where condition A is false.
| 5. Can logical operators be used in combination with other operators in SQL? | |
Ans. Yes, logical operators can be used in combination with other operators in SQL. They can be used to create complex conditions by combining multiple operators such as comparison operators (=, <>, >, etc.) or arithmetic operators (+, -, *, /, etc.) with logical operators (AND, OR, NOT). This allows for more flexible and powerful querying of data.
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Nov 24, 2024 Last updated |
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