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Topic: Sql-conceptual-questions / Level: Beginner
61. What is a timestamp in SQL?
62. Explain the difference between CHAR and VARCHAR.
63. What is the purpose of the CAST function?
64. How do you convert data types in SQL?
65. What is the difference between a clustered and a non-clustered index?
66. How do you find duplicate records in a table?
67. What is the purpose of the COALESCE function?
68. How does the CASE statement work in SQL?
69. What is a concatenation in SQL?
70. How do you concatenate strings in SQL?
71. What is a SQL command prompt?
72. How do you execute a SQL query from a command line?
73. What is a database management system (DBMS)?
74. Explain the purpose of a SQL client.
75. What are the advantages of using SQL?
76. How do you connect to a database using SQL?
77. What is a connection string?
78. How do you handle errors in SQL?
79. What are transactions in SQL, and why are they important?
80. How do you implement error handling in SQL?
81. What is a SQL console?
82. What is the role of a database administrator?
83. How do you grant permissions in SQL?
84. What is the purpose of the GRANT statement?
85. How do you revoke permissions in SQL?
86. What is the purpose of the REVOKE statement?
87. How do you create a temporary table in SQL?
88. What is a global temporary table?
89. What is the difference between local and global temporary tables?
90. How do you use a temporary table in a query?
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What is the purpose of the DATEDIFF() function?
How do you grant and revoke permissions in SQL?
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What is the difference between a server role and a database role?
How does the SUM() function work?
How do you implement ETL (Extract, Transform, Load) processes in SQL?
How do you handle data migration from legacy systems to SQL Server?
What is the significance of the CREATE VIEW statement in data abstraction?
How do you implement an INSTEAD OF trigger?
What is the purpose of the SELECT statement?
What is the purpose of the ORDER BY clause?
What is the difference between a view and a table in SQL?
What are the best practices for database migrations during upgrades?
How do you drop a table in SQL?
What are the differences between a physical backup and a logical backup?