Finding Missing Records

I have 18 tables that are all related by the primary key. When I join all
the fields together for reporting, it only shows the records that have all
the data filled in. How can I find which tables don't have a record?
Thanks,
DrewLEFT JOIN
"Drew" <drew.laing@.NOswvtc.dmhmrsas.virginia.SPMgov> wrote in message
news:%23O17e%233OFHA.2144@.TK2MSFTNGP09.phx.gbl...
>I have 18 tables that are all related by the primary key. When I join all
>the fields together for reporting, it only shows the records that have all
>the data filled in. How can I find which tables don't have a record?
> Thanks,
> Drew
>|||Didn't think it would be that easy! Thought I would have to use an EXIST
query for this, and couldn't figure out how to incorporate all the tables
into 1 query...
Thanks,
Drew
"Michael C#" <howsa@.boutdat.com> wrote in message
news:%23EbjnA4OFHA.2680@.TK2MSFTNGP09.phx.gbl...
> LEFT JOIN
> "Drew" <drew.laing@.NOswvtc.dmhmrsas.virginia.SPMgov> wrote in message
> news:%23O17e%233OFHA.2144@.TK2MSFTNGP09.phx.gbl...
>|||SELECT *
FROM Table1
LEFT JOIN Table2
WHERE Table2.Field1 IS NULL
"Drew" <drew.laing@.NOswvtc.dmhmrsas.virginia.SPMgov> wrote in message
news:uRZzCL4OFHA.3072@.TK2MSFTNGP09.phx.gbl...
> Didn't think it would be that easy! Thought I would have to use an EXIST
> query for this, and couldn't figure out how to incorporate all the tables
> into 1 query...
> Thanks,
> Drew
> "Michael C#" <howsa@.boutdat.com> wrote in message
> news:%23EbjnA4OFHA.2680@.TK2MSFTNGP09.phx.gbl...
>|||OOPS, left out the ON clause:
SELECT *
FROM Table1
LEFT JOIN Table2
ON Table1.Column1 = Table2.Column1
WHERE Table2.Column1 IS NULL
"Drew" <drew.laing@.NOswvtc.dmhmrsas.virginia.SPMgov> wrote in message
news:uRZzCL4OFHA.3072@.TK2MSFTNGP09.phx.gbl...
> Didn't think it would be that easy! Thought I would have to use an EXIST
> query for this, and couldn't figure out how to incorporate all the tables
> into 1 query...
> Thanks,
> Drew
> "Michael C#" <howsa@.boutdat.com> wrote in message
> news:%23EbjnA4OFHA.2680@.TK2MSFTNGP09.phx.gbl...
>|||>> When I join all the fields together for reporting, it only shows the
Depending on your requirements, you can use OUTER JOINs or correlated
subqueries to retrieve all rows in one table which does not have a matching
value for a joining column in another table.
Anith