You can turn on auditing on all activities by issuing AUDIT ALL statement but it will generate massive amounts of audit trails, which can become unmanageable and impacts the system performance. Listener Password Deprecated (Release 2 Only) Remember setting the password for listener? Up to just prior to Oracle Database 10g, setting this password was a must for any security establishment worth its salt
By default, it will number the rows without using any column, unless there is one more data column than there are headers, in which case the first column is taken as the index. Note When importing categorical data, the values of the variables in the Stata data file are not preserved since Categorical variables always use integer data types between -1 and n-1 where n is the number of categories
Microsoft Access Query Tips and Techniques with SQL and VBA Code
For instance, if you are generating a series of reports while other people are changing the data, a Make Table query can create a snapshot of your data and allow your reports to work off that table. For multi-table queries, if it is set to Yes, (similar to using a DISTINCTROW in a SQL statement) only unique records in the underlying tables are retrieved
*l.value3 and r.value2 are not comparable (although there might exist a correlation) *l.value3 is nullable (which I think is not a big deal because the condition is out of the NOT IN clause). So with the join you would want when r.value is not null For Each r.value ALL r.value2 1 (this part is hard to explain: just remember that r.value can have multiple r.value2 associated to it and we want all of them to be different from 1) So now I am stuck searching for a way to express existential and universal conditions
SQL Server T-SQL Tuning - NOT IN and NOT Exists - SQL Server Performance
Much informative!! Phil Reply January 16, 2013 at 8:20 am It would be nice to see some test results which back up your assertions, using sample data with hundreds of thousands of rows. This can however have a major impact on performance as the Not IN command requires a check to be made on each record individually resulting in a strain on resources and can also lead to locks particularly when updating or deleting a large volume of data
Pinal: Okay, in simple words, if your table has three rows (values 1, 2, 3), your inner join can return 10 rows but it cannot return you the value 4 as part of the result. Are you sure that you are connected to the correct database and running the query on the same server where you are validating the data? Jeff: Yes, yes, everything is in the right place
SQL Tutorial - Learn SQL Query Programming Language
This SQL programming help site lists commonly-used SQL statements, and is divided into the following sections: SQL Commands: Basic SQL statements for storing, retrieving, and manipulating data in a relational database. My experience is that understanding the basics of SQL is much easier than mastering all the intricacies of this database language, and I hope you will reach the same conclusion as well
Uh! I almost felt like going back in time some ten years when I was writing kernel drivers for Windows :) This is excellent participation from experts like Marko and Brian. Is it better write a function Drop table and and pass table name as parameter to do this? In my opinion, I think it is expensive to go to a function from a stored procedure just to drop a table
How can I make this work??? ALSO: Beside the query correction itself, I'd welcome any best practice pointers you could give me for undertakings like this. As for best practice pointers, the safest way to be sure that your deployment is going to go exactly as you planned is to practice it in an identical environment
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