Microsoft SQL Server Development for Everyone - Advanced Select Queries

This video tutorial covers advanced SQL select statements, including using the editor to generate queries, understanding fully qualified table names, and filtering data with conditions and wildcards. It also explains how to create custom columns by concatenating strings and demonstrates filtering on numerical values. The tutorial provides practical examples using a school database and courses table.

What is the primary advantage of using the editor to generate select statements?

• It allows for real-time collaboration with other users.

• It generates a select statement and retrieves results quickly.

• It provides a visual representation of the data.

• It automatically optimizes the query for performance.

What does the 'TOP' keyword in SQL do?

• It removes duplicate records from the result set.

• It sorts the records in descending order.

• It limits the number of records returned by a query.

• It groups records based on a specified column.

What is a fully qualified table name in SQL?

• A table name that is encrypted for security.

• A table name that is indexed for faster access.

• A table name that is unique across all databases.

• A table name that includes the database and schema names.

Which SQL keyword is used to filter records based on a condition?

• GROUP BY

• ORDER BY

• WHERE

• HAVING

How can you filter records to find those with a specific last name in SQL?

• Using the GROUP BY clause.

• Using the ORDER BY clause.

• Using the WHERE clause with an equality condition.

• Using the LIKE keyword with a wildcard.

What is the purpose of using wildcards in SQL queries?

• To sort records in a specific order.

• To join multiple tables together.

• To perform calculations on numeric data.

• To match patterns within text data.

Which symbol is commonly used as a wildcard in SQL?

• Percentage sign (%)

• Exclamation mark (!)

• Question mark (?)

• Asterisk (*)

How can you create a custom column in an SQL query?

• By using the AS keyword to rename an existing column.

• By using the JOIN keyword to combine columns.

• By using the DISTINCT keyword to remove duplicates.

• By using the + operator to concatenate values.

What type of comparisons can be performed on numerical values in SQL?

• String concatenation

• Pattern matching

• Date formatting

• Numerical comparisons like greater than or less than

How can you filter courses with credits greater than a specific value?

• Using the GROUP BY clause

• Using the WHERE clause with a greater than condition

• Using the DISTINCT keyword

• Using the ORDER BY clause