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Update FAQ.

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Bruce Momjian 2001-10-14 23:27:31 +00:00
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commit 360e61e1f5
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doc/FAQ
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@ -1,7 +1,7 @@
Frequently Asked Questions (FAQ) for PostgreSQL
Last updated: Sat Oct 13 01:26:55 EDT 2001
Last updated: Sun Oct 14 19:27:20 EDT 2001
Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us)
@ -826,10 +826,8 @@ BYTEA bytea variable-length byte array (null-safe)
object with the nextval() function before inserting and then insert it
explicitly. Using the example table in 4.16.1, that might look like
this in Perl:
$sql = "SELECT nextval('person_id_seq')";
$newSerialID = ($conn->selectrow_array($sql))[0];
INSERT INTO person (id, name) VALUES ($newSerialID, 'Blaise Pascal');
$res = $dbh->do($sql);
new_id = output of "SELECT nextval('person_id_seq')"
INSERT INTO person (id, name) VALUES (new_id, 'Blaise Pascal');
You would then also have the new value stored in $newSerialID for use
in other queries (e.g., as a foreign key to the person table). Note
@ -840,9 +838,7 @@ BYTEA bytea variable-length byte array (null-safe)
Alternatively, you could retrieve the assigned SERIAL value with the
currval() function after it was inserted by default, e.g.,
INSERT INTO person (name) VALUES ('Blaise Pascal');
$res = $conn->do($sql);
$sql = "SELECT currval('person_id_seq')";
$newSerialID = ($conn->selectrow_array($sql))[0];
new_id = output of "SELECT currval('person_id_seq')";
Finally, you could use the OID returned from the INSERT statement to
look up the default value, though this is probably the least portable

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doc/src/FAQ/FAQ.html
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@ -12,7 +12,7 @@
alink="#0000FF">
<H1>Frequently Asked Questions (FAQ) for PostgreSQL</H1>
<P>Last updated: Sat Oct 13 01:26:55 EDT 2001</P>
<P>Last updated: Sun Oct 14 19:27:20 EDT 2001</P>
<P>Current maintainer: Bruce Momjian (<A href=
"mailto:pgman@candle.pha.pa.us">pgman@candle.pha.pa.us</A>)<BR>
@ -1050,10 +1050,8 @@ BYTEA bytea variable-length byte array (null-safe)
example table in <A href="#4.16.1">4.16.1</A>, that might look like
this in Perl:</P>
<PRE>
$sql = "SELECT nextval('person_id_seq')";
$newSerialID = ($conn->selectrow_array($sql))[0];
INSERT INTO person (id, name) VALUES ($newSerialID, 'Blaise Pascal');
$res = $dbh->do($sql);
new_id = output of "SELECT nextval('person_id_seq')"
INSERT INTO person (id, name) VALUES (new_id, 'Blaise Pascal');
</PRE>
You would then also have the new value stored in
<CODE>$newSerialID</CODE> for use in other queries (e.g., as a
@ -1068,9 +1066,7 @@ BYTEA bytea variable-length byte array (null-safe)
<I>after</I> it was inserted by default, e.g.,</P>
<PRE>
INSERT INTO person (name) VALUES ('Blaise Pascal');
$res = $conn->do($sql);
$sql = "SELECT currval('person_id_seq')";
$newSerialID = ($conn->selectrow_array($sql))[0];
new_id = output of "SELECT currval('person_id_seq')";
</PRE>
Finally, you could use the <A href="#4.17"><SMALL>OID</SMALL></A>
returned from the <SMALL>INSERT</SMALL> statement to look up the