Which SQL statement is used to extract data from a database?
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FETCH
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GET
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SELECT
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EXTRACT
SELECT is the SQL statement used to retrieve/extract data from database tables. It's the most fundamental SQL query operation. FETCH is used in cursors (not a standalone data retrieval statement), GET and EXTRACT are not standard SQL keywords for retrieving data from tables.
To answer this question, you need to understand SQL (Structured Query Language), which is a programming language used for managing and manipulating relational databases.
Let's go through each option to understand why it is correct or incorrect:
Option A) FETCH: The FETCH statement is used in SQL to retrieve rows from a cursor and move the cursor position to the next row. It is not used to extract data from a database directly.
Option B) GET: The GET statement is not a valid SQL statement for extracting data from a database. There is no GET statement in SQL.
Option C) SELECT: The SELECT statement is the correct SQL statement used to extract data from a database. It is used to retrieve data from one or more tables in a database based on specified conditions.
Option D) EXTRACT: The EXTRACT statement is used in SQL to extract parts of a date or time value, such as extracting the year or month from a date. It is not used to extract data from a database directly.
The correct answer is C) SELECT. This option is correct because the SELECT statement is the primary SQL statement used for extracting data from a database.