What SQL keyword is used to query data?
The SQL keyword SELECT is used to specify the columns to be listed in the query results. The SQL keyword WHERE is used to specify the table(s) that contain(s) the data to be retrieved.
What is the purpose of the keyword like in SQL?
The SQL LIKE clause is used to compare a value to similar values using wildcard operators. There are two wildcards used in conjunction with the LIKE operator. The percent sign represents zero, one or multiple characters. The underscore represents a single number or character.
What is the purpose of the AS keyword?
The AS keyword is to give an ALIAS name to your database table or to table column.
Is current a keyword in SQL?
It appears that ‘current’ is in fact a SQL-99 reserved word: http://developer.mimer.com/validator/sql-reserved-words.tml.
Which SQL keyword is used to retrieve a maximum value?
MAX() is the SQL keyword is used to retrieve the maximum value in the selected column.
What is keyword in database?
Keywords, also commonly called search terms, are the words that you enter into the database search boxes. They represent the main concepts of your research topic and are the words used in everyday life to describe the topic.
How does SQL like work?
The SQL Server LIKE is a logical operator that determines if a character string matches a specified pattern. A pattern may include regular characters and wildcard characters. The LIKE operator is used in the WHERE clause of the SELECT , UPDATE , and DELETE statements to filter rows based on pattern matching.
How do I start SQL?
Here are a few steps you can take to jumpstart learning SQL on your own.
- Start Simple. No matter what method you use to learn SQL, you may be anxious to quickly dive in and test your new skillset. …
- Watch Tutorials. …
- Take a SQL Class. …
- Install a Free SQL Database.