Implementing a faster interpreted loop would also do the trick. That hasn't been my experience at all. Invoking CLR methods seems to have its own overhead, and it you're calling such a method in a loop that is run with a significant enough volume, things tend to slow to a crawl. How have things been on your end? Pretty good so far, although admittedly I've been using simple functions. Are you talking about aggregates specifically? Eg database backups, integrity checks, index rebuilds.
In short, admin tasks. GilaMonster GilaMonster 1, 12 12 silver badges 13 13 bronze badges. Iconiu Iconiu 1 1 silver badge 4 4 bronze badges. Matt Wrock Matt Wrock 6, 28 28 silver badges 23 23 bronze badges. Dane Dane 8, 5 5 gold badges 26 26 silver badges 21 21 bronze badges. You are saying nr1 : Try to reach your destination faster than a plane, if you fail grab a plane.
This could take my whole life Jan That's not even close to what I was saying 9 years ago. In fact, I don't even know what you mean.
Read it all over again please. So how can you know that it is not even close to what you were saying, if you did not understand what I meant? Sorry for the coment at all, I am just mad at SQL and keep on reading: "use a set based aproach unless you cant". Thats some sort of recursive acronym like GNU. I would need to test my whole life to do it set based, then when I died its safe to say "For ME it was not possible, I could have used a cursor here".
Jan sorry for not getting back to this comment after you posted to clarify. Your initial question is very fair, and my comment was posted hastily.
It's our job to know the difference quickly. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog. Does ES6 make JavaScript frameworks obsolete? Reference Cursor. Profile Answers by brcprasanna. CURSOR Whenever a sql statement is issued, at that time oracle server will allocate some memory area to execute and parse that sql statement. That data area is called as cursor.
In order to process sql statement oracle allocate an area of memory known as context area. Context area hold all the necessary information to process the sql statment including the no. Cursor is a handler or a pointer to the context area. Most common operation using cursor is to fetch data rows in the active set. A cursor is a private SQL work area. Whenever you issue a SQL statement, the Oracle server opens an area of memory in which the command is parsed and executed.
This area is called a cursor. Cursor is a named private SQL area from where information can be accessed. Profile Answers by krishnaindia A cursor is a mechanism by which we can assign name to that private sql area , there by access information stored in it.
This complete set of rows returned by the statement is known as the result set. Applications, especially those that are interactive and online, cannot always work effectively with the entire result set as a unit. These applications need a mechanism to work with one row or a small block of rows at a time. Cursors are an extension to result sets that provide that mechanism. A cursor is implemented by a cursor library.
A cursor library is software, often implemented as a part of a database system or a data access API, that is used to manage attributes of data returned from a data source a result set. These attributes include concurrency management, position in the result set, number of rows returned, and whether you can move forward or backward or both through the result set scrollability. A cursor keeps track of the position in the result set, and allows you to perform multiple operations row by row against a result set, with or without returning to the original table.
In other words, cursors conceptually return a result set based on tables within the databases. The cursor is so named because it indicates the current position in the result set, just as the cursor on a computer screen indicates current position. It is important to become familiar with the concept of cursors before moving on to learn the specifics of their usage in ADO.
For example, consider an application that displays a list of available products to a potential buyer. The buyer scrolls through the list to see product details and cost, and finally selects a product for purchase. Additional scrolling and selection occurs for the remainder of the list.
As far as the buyer is concerned, the products appear one at a time, but the application uses a scrollable cursor to browse up and down through the result set. Sensitive to underlying table changes caused by other applications such as membership, sort, inserts, updates, and deletes. Complex cursors can be defined with keysets that point back to base table rows. Although some cursors are read-only in a forward direction, others can move back and forth and provide a dynamic refresh of the result set based on changes that other applications are making to the database.
Not all applications need to use cursors to access or update data.
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