Automatic Performance Statistics
Even an event that had a wait of 30 minutes in a 45 minute snapshot might not be indicative of a problem if you discover that there were 2000 users on the system, and the host hardware was a 64 node system. See Also: Oracle Database Utilities for information about using Data Pump 5.3.3.2 Loading AWR Data Once the export dump file is transported to the target system, you can load the extracted AWR data using the awrload.sql script
The article is intended for SQL coders, who for might be not be using analytic functions due to unfamiliarity with its cryptic syntax or uncertainty about its logic of operation. What about when you have a data set that contains records with timestamps and you would like to roll them up to the second and then look at a sliding window to find, say the busiest 5 minutes of the day? It is trivial to create the query to aggregate the data into per-second blocks but I cannot figure out the syntax to put a window around it
ORACLE interview questions : Working with AWR - Oracle 10g for Performance tuning in Oracle
Is this bad? How can you find what is causing it? view answer Discuss row chaining, how does it happen? How can you reduce it? How do you correct it? view answer Describe hit ratio as it pertains to the database buffers. How do you write the query? view answer How do you display the records within a given range? view answer How do I display row number with records? view answer How do I eliminate duplicate rows in an Oracle database? view answer How do you switch to DOS prompt from SQL prompt? view answer What?s the command to change the SQL prompt name? view answer What?s the command to see the current user name? view answer What are the pros and cons of using triggers? Expected answer: view answer When a query is sent to the database and an index is not being used, what type of execution is taking place? view answer What is the difference of a LEFT JOIN and an INNER JOIN statement? view answer What is an advantage to using a stored procedure as opposed to passing an SQL query from an application
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sql-server connections informatica sql-server-core multi-thread asked 1 hour ago MacGyver 55931325 0 votes 0answers 5 views AlwaysOn Availability Listener only working on one node We are creating an new SQL 2014 AlwaysOn Availability Group called SQLProd with 3 nodes: SQLPrimary SQLReports SQLDR SQLPrimary is the server we are going to host the primary replica on. mongodb mongodb-3.0 asked 9 hours ago Baruch Oxman 1011 -1 votes 2answers 24 views How to Interpret Trace Flag 1222 deadlock please guide me how to read this graph to figure out what is cause for this deadlock
Speaking of the Date data type, I know I should now speak about the operators that work with them, but I would rather we go back to discussing Where clauses. His tools of choice are Oracle technologies and he has over a decade of experience building applications with Oracle Forms, Oracle Application Development Framework and Oracle Application Express
Dates in Oracle Dates part of SQL for Web Nerds by Philip Greenspun, updated June 13, 2003 When representing date-time information in Oracle it becomes absolutely critical to know with which version of the Oracle server you are working. These are cleaner and more powerful than the older Oracle-specific way of doing things and further will make it easier to port your application to another RDBMS if necessary
Data Types
BasicFiles LOBs not only impose restrictions on the capabilities of extended data type columns, but the BasicFiles data type is planned to be deprecated in a future release. Character data is stored in strings with byte values corresponding to one of the character sets, such as 7-bit ASCII or EBCDIC, specified when the database was created
I'm guessing you're installing that for the lower configuration requirements? My first recommendation would be to try 10gXE and see if you can run that. ...so please, how do i set this database and where and in what kind of environment am writing the database and,is it inside the sql platform and what are the things to write there and how is it going to be working for them
Tags: custom functions, FCMP, networkdays, sas programming, SAS tips Proc-x is looking for sponsors! Dear readers, proc-x is looking for sponsors who would be willing to support the site in exchange for banner ads in the right sidebar of the site
Think twice, for example, before reading a TIMESTAMP value from a table into a DATE variable, because you might lose information (in this case, the fractional seconds and perhaps the time zone). Unlike strings and numbers, dates are quite complicated: not only are they highly formatted data, but there are also many rules for determining valid values and valid calculations (leap days and years, daylight saving time changes, national and company holidays, date ranges, and so on)
How To Calculate Difference Between Dates in Oracle SQL - OracleCoder
just the months between the dates, or do you want to show how many years there are between the dates too? This seems pretty elementary, but I would suggest that before you actually start using the different Oracle date functions, you ask yourself exactly what result you would want first. are doing calculations where the exact number of days has to be totally correct, my suggestion is to always TRUNC all dates so that your dates will be all looked at as if they were at midnight that day
Mastering Oracle+Python, Part 2: Working with Times and Dates
Getting acquainted with seamlessly integrated datetime datatypes you can now inject them in your calendar-aware applications, gaining Python for your development toolbox. TIMESTAMP WITH TIME ZONE - In addition to information stored in a TIMESTAMP column, this variation also includes a time zone offset which is a difference between the local time and UTC (Coordinated Universal Time)
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"
Since you have the years and months calculated (you did not show us how you generated those values and, really, you should) you have enough information to extract the number of days less than a month which remain
sql query - working days between two dates (including public holidays) - Oracle: Oracle release 11g - Tek-Tips
RE: sql query - working days between two dates (including public holidays) Dagon (MIS) 15 Jun 12 04:17 How can U3L.DTK.DATE3 be a third table? Your other tablek is U3L.DTK.DATE2 and DATE2 is clearly the column name, so U3L must be schema and DTK must be the table name. I am struggling to "link" these dates to my query in order to produce a "WORKDAYS" value that counts the "days" between U3L.DPL.DATE1 and U3L.DTK.DATE2 AND makes a deduction for any days found in this range that are listed in U3L.DTX.DATE3 RE: sql query - working days between two dates (including public holidays) SantaMufasa (TechnicalUser) 21 Jun 12 14:31 Mickey-D, If I'm not mistaken, your main problem is figuring the number of workdays between two dates, while not counting public holidays and weekend days, right? If so, I recommend just creating an Oracle function the does just that
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