Select specific rows and columns from an SQL database
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SQL is used to select required columns from required rows. The data rows don’t have row_names unless you’ve defined a column with the name row_names (this is not done as a rule). At a basic level, retrieving data from an RDBMS is through an SQL statement that is constructed as follows: (This’d be a SELECT statement. The simplest version has the following clauses)
Putting it all together, we might have: