摘要： 38.8. Errors and MessagesUse the RAISE statement to report messages and raise errors.from:http://www.postgresql.org/docs/8.4/interactive/plpgsql-errors-and-messages.htmlRAISE [ level ] 'format' [, expression [, ...]] [ USING option = expression [, ... ] ];RAISE [ level ] condition_name [ USI 阅读全文