Question

The clause that contains the condition for linking different tables is:

a) Order by
b) Select
c) From
d) Group by

Answer 1

The FROM clause is the closest option from the list that refers to specifying tables in a SQL query, which is necessary when linking tables, though the actual conditions are usually specified using a JOIN clause.

Step-by-step explanation:

The clause in SQL that is used for linking different tables based on a condition is called the JOIN clause, which is typically used in combination with the ON keyword to specify the condition. However, among the options provided, the nearest option that's related to table relationships is the FROM clause, which is used to indicate the tables from which to retrieve data. It's important to note that the actual joining condition is specified with the JOIN keyword, which was not listed among the options.

To clarify:

• Order by is used for sorting the result set.
• Select is used to specify the columns to be returned.
• From is used to specify the tables from which to select data.
• Group by is used to group rows that have the same values in specified columns into summary rows.