search_condition

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4D v20

search_condition



	Command search_conditiopredicate \| NOT search_condition \| (search_condition) \| search_condition OR search_condition \| search_condition AND search_condition \|

Description

A search_condition specifies a condition to be applied to the data retrieved. A combination of search conditions using AND or OR keywords can also be applied. You can also precede a search_condition with the NOT keyword in order to retrieve data that does not meet the specified condition.

It is also possible to pass a predicate as a search_condition.

Example

Here is an example using a combination of search conditions in the WHERE clause:

SELECT supplier_id
FROM suppliers
WHERE (name = 'CANON')
OR (name = 'Hewlett Packard' AND city = 'New York')
OR (name = 'Firewall' AND status = 'Closed' AND city = 'Chicago');

Siehe auch

DELETE
predicate
SELECT
UPDATE