Select Statement
The SELECT
statement is used to retrieve the rows from one or more tables in a database.
Selecting All Columns
To select all the rows of a table, use the asterisk (*
).
Syntax
SELECT <query-parameters> FROM <table-name>;
Example #1
SELECT * FROM Companies;
Name | Type | Founded | HQ |
---|---|---|---|
Walmart | Retail | 1962 | United States |
Disney | Entertainment | 1923 | United States |
PayPal | Finance | 1998 | United States |
Blackberry | Technology | 1984 | Canada |
Tip: If you have a lot of rows use
ctrl-c
orcmd-c
to escape from viewing more rows.
Selecting Specific Columns
Specific columns can be retrieved from a table too.
Syntax
SELECT <column-name> FROM <table-name>;
Example #2
SELECT name, founded, hq FROM Companies;
Name | Founded | HQ |
---|---|---|
Walmart | 1962 | United States |
Disney | 1923 | United States |
PayPal | 1998 | United States |
Blackberry | 1984 | Canada |