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How are string literals delimited in sql

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Reference no: EM131874978

Problem

1. What is the purpose of the primary keys of a table in a relational database?

2. What is the purpose of a cross-reference table?

3. How are string literals delimited in SQL?

4. What does the NOT NULL constraint specify in a column of a CREATE TABLE SQL command?

5. What does an asterisk specify when it appears as the value of a SELECT clause?

Reference no: EM131874978

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