On Feb 29, 2008, at 2:28 PM, Mike Gould wrote:
CREATE TABLE "fav5"."batchnumber" (
"batchnumberid" SERIAL NOT NULL,
"processtype" SMALLINT NOT NULL,
"termloc" CHAR(3) NOT NULL,
"batchno" INTEGER NOT NULL
) WITHOUT OIDS;
With the above table definition, is batchnumberid by default also
defined as the primary key or do I still need to define a separate
Primary Key constraint?
No, you need to add the PRIMARY KEY bit which means you can also drop
the NOT NULL bit for that field.
Erik Jones
DBA | Emma®
erik@xxxxxxxxxx
800.595.4401 or 615.292.5888
615.292.0777 (fax)
Emma helps organizations everywhere communicate & market in style.
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TIP 9: In versions below 8.0, the planner will ignore your desire to
choose an index scan if your joining column's datatypes do not
match
