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Technical Article

RE: delta processing: alternative to cursor

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quote: Is the following statement a valid example of the checksum-statement ? I've read about the * on msdn (-which does not mention the abality to use the table-qualifications as t. and o.) but am unable to test because I have a couple of days off right now UPDATE o SET o.data1 = t.data1 , […]

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2003-07-31

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Technical Article

RE: delta processing: alternative to cursor

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Some timings: No UDFs (Basic) - 1036 rows/second Basic + Currency Conversion UDFs - 770 rows/sec Basic + Date UDFs - 550 rows/sec Basic + Currency UDFs + Date UDFs - 480 rows/sec Basic + Date validation as case statement - 710 rows/sec Basic + Date validation as case + table join for currency conversion […]

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2003-07-31

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Technical Article

RE: delta processing: alternative to cursor

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Just to chime in on the UDF issue... I think they are amazingly cool, but should be used in select statements with great caution. We were working on an application here and the other developer, who comes from a VB/CGI/web-development world, coded a lot of the logic into UDFs, then put the UDFs in the […]

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2003-07-30

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Technical Article

RE: delta processing: alternative to cursor

  • Reply

Is the following statement a valid example of the checksum-statement ? I've read about the * on msdn (-which does not mention the abality to use the table-qualifications as t. and o.) but am unable to test because I have a couple of days off right now UPDATE o SET o.data1 = t.data1 , o.data2 […]

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2003-07-30

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Technical Article

RE: delta processing: alternative to cursor

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@jpipes: Thanks a lot ! This is exactly what we are looking for. A first test: two tables containing 1.2 million rows (temp and ods). After changing 47.000 rows on the temp. I've ran the update statement. (server Pentium III 500 Mhz 384Mb an old one to test on) completed in 27 seconds! Comparisons against […]

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2003-07-30

Technical Article

RE: UDF on a Linked Server

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I just wonder if using UDF is better than using a SP on the linked server. The SP would return a rowset, of course, that would be inserted into a local temp table. OR use a UDF and still insert into a local temp temp for further usage. So, does anyone have experience of comparing […]

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2003-07-24

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Technical Article

RE: Excessive Freespace Used

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Thanks Shas3, This is a reporting db and I have additional backups on the VAX/Alpha platform. My mission-critical dbs use separate drives to store the data, the logs, and the backups. Loading is done once per week overnite so I/O is not a consideration. I am just trying to find out why the datafiles grow […]

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2003-06-24

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