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Tricks to increase SQL Server query performance
ABOUT THE AUTHOR Denny Cherry has over a decade of experience managing SQL Server, including MySpace.com's over 175 million user installation, one of the largest in the world. The first is to create a stored procedure on the remote database and have it return a record set, being a subset of the remote tables, which is then loaded into a local temporary table
oracle - SQL query for adding column value to compare with other column - Code Review Stack Exchange
I'm not sure if it will be used, since there is grouping involved, but you may wish to look into creating an index for this query if performance of the query becomes an issue
script the source table and then run the script on destination, where you want to create the table, this will create a table with the same name with all the features of the source table. Tha query will give you properties for that table (columns, keys, values, etc.) I want to pull the same properties from a result set that is not already a table
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Oracle SQL , how to use current date - a specified date - Stack Overflow
select extract(year from startdate) from staff; But now i am trying to update a field call serviceYears inside staff, by using current year - year of start date to get the amount of years the staff have committed to work
SQL FAQ - Oracle FAQ
COMMIT - save work done SAVEPOINT - identify a point in a transaction to which you can later roll back ROLLBACK - undo the modification I made since the last COMMIT SET TRANSACTION - Change transaction options like isolation level and what rollback segment to use SET ROLE - set the current active roles DML are not auto-commit. If you include the SAMPLE clause within a multi-table or remote query, you will get a parse error or "ORA-30561: SAMPLE option not allowed in statement with multiple table references"
reply thatjeffsmith posted 1 year ago Try the query again, but only a few rows, does that work? reply Greg posted 1 year ago Hi, I am trying to export data from SQL*Developer in a fixed-width format. reply Anabol X1 Muscle posted 2 months ago Asking questions are really good thing if you are not understanding something completely, but this article presents nice understanding yet
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