Right Answer: SQL Wildcard Characters in SQL Server are special symbols used in queries to represent one or more characters in string comparisons. The most common wildcard characters are:
1. `%` - Represents zero or more characters.
2. `_` - Represents a single character.
These are often used with the `LIKE` operator in SQL queries to filter results based on pattern matching.
Right Answer: A join is a SQL operation that combines rows from two or more tables based on a related column between them. Joins are used to retrieve data that is spread across multiple tables, allowing for more complex queries and data analysis. They are commonly used in database queries to gather related information, such as combining customer and order data.
