Is there any eqvivalent or alternative to UPDATE(column) or COLUMNS_UPDATED() of SQLServer2000
От | shreedhar |
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Тема | Is there any eqvivalent or alternative to UPDATE(column) or COLUMNS_UPDATED() of SQLServer2000 |
Дата | |
Msg-id | 000601c1cc18$97f37200$1201a8c0@a4005 обсуждение исходный текст |
Ответы |
Re: Is there any eqvivalent or alternative to UPDATE(column) or COLUMNS_UPDATED()
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Список | pgsql-admin |
Is there any eqvivalent or alternative to the following IF UPDATE(column) or IF(COLUMNS_UPDATED()) of SQLServer2000. IF UPDATE (column) Tests for an INSERT or UPDATE action to a specified column and is not used with DELETE operations. More than one column can be specified. Because the table name is specified in the ON clause, do not include the table name before the column name in an IF UPDATE clause. To test for an INSERT or UPDATE action for more than one column, specify a separate UPDATE(column) clause following the first one. IF UPDATE will return the TRUE value in INSERT actions because the columns have either explicit values or implicit (NULL) values inserted. IF (COLUMNS_UPDATED()) Tests, in an INSERT or UPDATE trigger only, whether the mentioned column or columns were inserted or updated. COLUMNS_UPDATED returns a varbinary bit pattern that indicates which columns in the table were inserted or updated. Thanks And Regards, Sreedhar "Faith, faith, faith in ourselves, faith, faith in God, this is the secret of greatness. If you have faith in all the three hundred and thirty millions of your mythological gods, and in all the gods which foreigners have now and again introduced into your midst, and still have no faith in yourselves, there is no salvation for you. " (III. 190)
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