What is the select operation in SQL?
A SELECT statement retrieves zero or more rows from one or more database tables or database views. In most applications, SELECT is the most commonly used data manipulation language (DML) command. Lees verder »
What is the selection operation in SQL?
In SQL, selections are performed by using WHERE definitions in SELECT , UPDATE , and DELETE statements, but note that the selection condition can result in any of three truth values (true, false and unknown) instead of the usual two. Lees verder »
What is the SELECT function in SQL?
The SQL SELECT statement is used to query and retrieve data from a database. SELECT is one of the most commonly used SQL statements, allowing you to select specific columns and rows of data from database object(s). Lees verder »
How does the SELECT command work?
SQL statements, including SELECT, are made up a series of clauses that are defined by SQL as being executed in a logical order. SELECT statements allow users to definite and organize information that is retrieved from a specified table. Lees verder »
What is SELECT as in SQL?
The AS command is used to rename a column or table with an alias. An alias only exists for the duration of the query. Lees verder »
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