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UPDATE ... CURRENT OF cursorname

From: "Richard Broersma" <richard(dot)broersma(at)gmail(dot)com>
To: pgsql-jdbc(at)postgresql(dot)org
Subject: UPDATE ... CURRENT OF cursorname
Date: 2008-09-01 17:11:03
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-jdbc
I looking for an explination of how named cursor updates actually
work.  For example from the following link:

the code seems to imply that all rows from a name cursor will be update.

ResultSet rs = stmt.executeQuery(
		"SELECT . . . FROM . . . WHERE . . . FOR UPDATE . . .")
String cursorName = rs.getCursorName;
int updateCount = stmt2.executeUpdate(
		"UPDATE . . . WHERE CURRENT OF " + cursorName);

However from the postgresql manual, the verbase seems to indicate that
only the record currently pointed to in the cursor is updated.

The name of the cursor to use in a WHERE CURRENT OF condition. The
->row<-  to be updated is the one most recently fetched from this

Richard Broersma Jr.

Visit the Los Angeles PostgreSQL Users Group (LAPUG)


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Next:From: Oliver JowettDate: 2008-09-01 22:21:39
Subject: Re: UPDATE ... CURRENT OF cursorname
Previous:From: Pushker ChaubeyDate: 2008-09-01 15:01:05
Subject: Table Alias posing problem in Update statements

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