Combining tables with multi-column keys using NOT EQUALS

Hi, I am trying to perform a query in SQL to find a particular person who has a value for an attribute that nobody else has, so far my query looks like this:
SELECT CS1.*
FROM COMPANYSTAFF CS1
WHERE NOT EXISTS
(SELECT * FROM COMPANYSTAFF CS2 WHERE CS1.COMPSTAFFID != CS2.COMPSTAFFID AND CS1.MAININTEREST = CS2.MAININTEREST)
GO
The problem is that the table represents a weak entity, so the primary key is the name of the company the person works for combined with his ID. I want to change the not equals part of the above query so that I can say CS1-CompanyName and ID is not Equal to CS2-Company Name and ID rather than just both seperately.
In order to clarify what probably sounds really stupid I would really like the ability to say something like:
(CS1.COMPNAME, CS1.COMPSTAFFID) != (CS2.COMPNAME, CS2.COMPSTAFFID)
Does anyone know if this is possible or if there is another way around it?
Thanks
Dave

So ?
SELECT CS1.*
FROM COMPANYSTAFF CS1
WHERE NOT EXISTS
(SELECT * FROM COMPANYSTAFF CS2 WHERE (CS1.COMPSTAFFID != CS2.COMPSTAFFID OR CS1.COMPNAME != CS2.COMPNAME)
AND CS1.MAININTEREST = CS2.MAININTEREST)GO ?
Is is MS SQL ? :-)
Regards
Dmytro

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[NULLs Indicate Absence of Value|http://download-west.oracle.com/docs/cd/B14117_01/server.101/b10743/schema.htm#sthref725]
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Oracle 11.2 - Perform parallel DML on a non partitioned table with LOB column

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PLAN_TABLE_OUTPUT
Plan hash value: 3718066193
| Id | Operation             | Name     | Rows | Cost (%CPU)| Time     |    TQ |IN-OUT| PQ Distrib |
|   0 | DELETE STATEMENT      |          | 2048 |     2   (0)| 00:00:01 |        |      |            |
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|   2 |   PX COORDINATOR      |          |       |            |          |        |      |            |
|   3 |    PX SEND QC (RANDOM)| :TQ10000 | 2048 |     2   (0)| 00:00:01 | Q1,00 | P->S | QC (RAND) |
|   4 |     PX BLOCK ITERATOR |          | 2048 |     2   (0)| 00:00:01 | Q1,00 | PCWC |            |
|   5 |      TABLE ACCESS FULL| T1       | 2048 |     2   (0)| 00:00:01 | Q1,00 | PCWP |            |
PLAN_TABLE_OUTPUT
Note
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STATISTIC                      LAST_QUERY SESSION_TOTAL
Queries Parallelized                    1             1
DML Parallelized                        0             0
DDL Parallelized                        0             0
DFO Trees                               1             1
Server Threads                          5             0
Allocation Height                       5             0
Allocation Width                        1             0
Local Msgs Sent                        55            55
Distr Msgs Sent                         0             0
Local Msgs Recv'd                      55            55
Distr Msgs Recv'd                       0             0
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|   0 | DELETE STATEMENT      |          |     4 |     2   (0)| 00:00:01 |        |      |            |
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|   2 |   PX COORDINATOR      |          |       |            |          |        |      |            |
|   3 |    PX SEND QC (RANDOM)| :TQ10000 |     4 |     2   (0)| 00:00:01 | Q1,00 | P->S | QC (RAND) |
|   4 |     PX BLOCK ITERATOR |          |     4 |     2   (0)| 00:00:01 | Q1,00 | PCWC |            |
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|   0 | INSERT STATEMENT         |          |     4 | 8008 |     2   (0)| 00:00:01 |        |      |            |
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|   3 |    PX SEND QC (RANDOM)   | :TQ10000 |     4 | 8008 |     2   (0)| 00:00:01 | Q1,00 | P->S | QC (RAND) |
|   4 |     PX BLOCK ITERATOR    |          |     4 | 8008 |     2   (0)| 00:00:01 | Q1,00 | PCWC |            |
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|   0 | INSERT STATEMENT                   |          |     4 | 8008 |     2   (0)| 00:00:01 |        |      |            |
|   1 | PX COORDINATOR                    |          |       |       |            |          |        |      |            |
|   2 |   PX SEND QC (RANDOM)              | :TQ10000 |     4 | 8008 |     2   (0)| 00:00:01 | Q1,00 | P->S | QC (RAND) |
|   3 |    LOAD AS SELECT                  | T1       |       |       |            |          | Q1,00 | PCWP |            |
|   4 |     OPTIMIZER STATISTICS GATHERING |          |     4 | 8008 |     2   (0)| 00:00:01 | Q1,00 | PCWP |            |
|   5 |      PX BLOCK ITERATOR             |          |     4 | 8008 |     2   (0)| 00:00:01 | Q1,00 | PCWC |            |
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hi lennert, hi all,
many thanks for all the answers. I�m not an Oracle expert.
Sorry for my english.
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you are right, what must i do to use the index in the
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Thanks in advance.

Hello,
U can either
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Vinay

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I have to create a table with 800 columns.I know the create statement to create a table but it will take more time.
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If you really think that you have to store 800 values for a given entity, it would be a wise idea if you store you information in columnar fashion. Make a main table and a attribute table, keep the primary identifier in the main table and store other attributes in the attribute table where you can keep the primary key of the first table as foreign key (not necessary) to maintain the relationship.
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Hi!
i have to create a Dynamic Table with two columns having 5-5 links each with some text...... three links r based on certain conditions....they r visible only if condition is true...
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Updating a table with no Primary key

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In SQLServer 2000, Enterprise manager throws an error if you have a table with no primary key and duplicate records that you try to update through the GUI. EM uses stored procedures to execute updates, and it rolls back ones which result in more than one update result.
Im not too familiar with Cursors in SQL, only that they are quite slow and not implemented on all DB products. But I think that they might be able to solve the problem (but I dont logically see how).
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another record with the same field valuesIf you have two records and all the field values are the same then the records are logically the same anyways, so it shouldn't matter if you update both (one would question why there are two records in the first place.) In other words there is no way, either computationally or manually to tell them apart.
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Table with frozen columns

In a recent project I've had the need of a Java Swing table with frozen columns.
After a long research at the Swing forum at java.sun.org and google I found out that
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2. All the postings at sun are good concepts, but far away from solutions
3. The only (for me )acceptable commercial solution is the JCTable from Quest (formerly KGroup)
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Exporting Table with CLOB Columns

Hello All,
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I can query the table and the owner is same as what i am exporting it from.
Please let me know.

An 8.0.6 client definitely changes things. Other posters have already posted links to information on what versions of exp and imp can be used to move data between versions.
I will just add that if you were using a client to do the export then if the client version is less than the target database version you can upgrade the client or better yet if possilbe use the target database export utility to perform the export.
I will not criticize the existance of an 8.0.6 system as we had a parent company dump a brand new 8.0.3 application on us less than two years ago. We have since been allowed to update the database and pro*c modules to 9.2.0.6.
If the target database is really 8.0.3 then I suggest you consider using dbms_metadata to generate the DDL, if needed, and SQLPlus to extact the data into delimited files that you can then reload via sqlldr. This would allow you to move the data with some potential adjustments for any 10g only features in the code.
HTH -- Mark D Powell --

Combining tables with multi-column keys using NOT EQUALS

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