Dropping/Applying Constraints

Jul 28, 2006

I have some C# code written a little while that imports data nightly
into a database. Most of the data is typically deleted from the tables
and imported again. There are some tables where data is never deleted
and references other tables. Because there are constraints between
these tables, the code processes the import in the following sequence.


get constraints from database->drop constraints->delete data->apply
constaints->import data


I was curious how I can accomplish similiar results in SSIS. I know I
can execute a process task to manage the constraints, but I was
wondering if there is any other way.


Thanks,
PJ

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Dropping Constraints

Oct 15, 2007

How to remove the constraints on a table in sql server 2000? I need to drop the column, so i need to drop the constraint before that.

Alter Table Table_Name NO CHECK constraints ALL.

Once I execute the above one, it says, "Successfully Executed" but when I try to drop it doesnt allow me and gives me the following error:

Server: Msg 5074, Level 16, State 1, Line 1
The object 'DF_Users_Created_by' is dependent on column 'CREATED_BY'.
Server: Msg 4922, Level 16, State 1, Line 1
ALTER TABLE DROP COLUMN CREATED_BY failed because one or more objects access this column.

Any ideas?

Thanks,

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Aline

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Hi, I want to drop a column from a table with default constraint. It is giving me error..
------------------
Server: Msg 5074, Level 16, State 1, Line 1
The object 'DF__ACTIVITY___ROLLU__108B795B' is dependent on column 'ROLLUP_BGT_COST_FIXED'.
Server: Msg 4922, Level 16, State 1, Line 1
ALTER TABLE DROP COLUMN ROLLUP_BGT_COST_FIXED failed because one or more objects access this column.
-------------------------

Here is the drop statement
-----------
DROP STATISTICS ACTIVITY_BASELINE.ROLLUP_BGT_COST_FIXED
ALTER TABLE ACTIVITY_BASELINE DROP COLUMN ROLLUP_BGT_COST_FIXED;
------------------------

How can I first drop the constraint?

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Hi,
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C:MSSQLcharsetscp1250 - created
C:MSSQLcharsetscp1250DICTION.250 - copied
C:MSSQLcharsetscp1250NOCASE.250 - copied
C:MSSQLcharsetscp1250CSYDIC.250 - copied
C:MSSQLcharsetscp1250CSYNC.250 - copied
C:MSSQLcharsetscp1250HUNDIC.250 - copied
C:MSSQLcharsetscp1250HUNNC.250 - copied
C:MSSQLcharsetscp1250PLKDIC.250 - copied
C:MSSQLcharsetscp1250PLKNC.250 - copied
C:MSSQLcharsetscp1250ROMDIC.250 - copied
C:MSSQLcharsetscp1250ROMNC.250 - copied
C:MSSQLcharsetscp1250SHLDIC.250 - copied
C:MSSQLcharsetscp1250SHLNC.250 - copied
C:MSSQLcharsetscp1250SKYDIC.250 - copied
C:MSSQLcharsetscp1250SKYNC.250 - copied
C:MSSQLcharsetscp1250SLVDIC.250 - copied
C:MSSQLcharsetscp1250SLVNC.250 - copied
C:MSSQLcharsetscp1251 - created
C:MSSQLcharsetscp1251DICTION.251 - copied
C:MSSQLcharsetscp1251NOCASE.251 - copied
C:MSSQLcharsetscp1251UKRDIC.251 - copied
C:MSSQLcharsetscp1251UKRNC.251 - copied
C:MSSQLcharsetscp1253 - created
C:MSSQLcharsetscp1253DICTION.253 - copied
C:MSSQLcharsetscp1253NOCASE.253 - copied
C:MSSQLcharsetscp1253GRALTDCT.253 - copied
C:MSSQLcharsetscp1253GRMXTDCT.253 - copied
C:MSSQLcharsetscp1253GRNOACCE.253 - copied
C:MSSQLcharsetscp1254 - created
C:MSSQLcharsetscp1254DICTION.254 - copied
C:MSSQLcharsetscp1254NOCASE.254 - copied
C:MSSQLcharsetscp1255 - created
C:MSSQLcharsetscp1255DICTION.255 - copied
C:MSSQLcharsetscp1255NOCASE.255 - copied
C:MSSQLcharsetscp1257 - created
C:MSSQLcharsetscp1257DICTION.257 - copied
C:MSSQLcharsetscp1257NOCASE.257 - copied
C:MSSQLcharsetscp1257ETIDIC.257 - copied
C:MSSQLcharsetscp1257ETINC.257 - copied
C:MSSQLcharsetscp1257LTHDIC.257 - copied
C:MSSQLcharsetscp1257LTHNC.257 - copied
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