PostgreSQL DML Operations: Difference between revisions

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INSERT INTO person (id, name) VALUES (10, 'Bob')
INSERT INTO person (id, name) VALUES (10, 'Bob')
</syntaxhighlight>
</syntaxhighlight>
Note: Use single quotes for the string values. Double quotes will let the SQL interpreter think you use a column name.
Double quotes can be used around column names.
 
Use single quotes for the string values. Double quotes will let the SQL interpreter think you use a column name.


=<TT>UPDATE</TT>=
=<TT>UPDATE</TT>=
Line 15: Line 17:
UPDATE person SET id=50 WHERE name='Bob'
UPDATE person SET id=50 WHERE name='Bob'
</syntaxhighlight>
</syntaxhighlight>
Double quotes can be used around column names.


=<TT>DELETE</TT>=
=<TT>DELETE</TT>=
{{Internal|SQL_DELETE#Overview|Standard SQL <tt>DELETE</tt>}}
{{Internal|SQL_DELETE#Overview|Standard SQL <tt>DELETE</tt>}}
<syntaxhighlight lang='sql'>
<syntaxhighlight lang='sql'>
DELETE FROM person WHERE "id"=10
DELETE FROM person WHERE id=10
</syntaxhighlight>
</syntaxhighlight>
Double quotes can be used around column names.


=<TT>SELECT</TT>=
=<TT>SELECT</TT>=

Latest revision as of 19:32, 24 May 2024

Internal

INSERT

Standard SQL INSERT
INSERT INTO person (id, name) VALUES (10, 'Bob')

Double quotes can be used around column names.

Use single quotes for the string values. Double quotes will let the SQL interpreter think you use a column name.

UPDATE

Standard SQL UPDATE
UPDATE person SET id=50 WHERE name='Bob'

Double quotes can be used around column names.

DELETE

Standard SQL DELETE
DELETE FROM person WHERE id=10

Double quotes can be used around column names.

SELECT

Standard SQL SELECT
SELECT "id", "name" FROM person