SQL Cursor : Database Object That Provisions Access to Records in a Database

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Print, transaction and cursor performance in Transact-sql

I'm having some performance issues when I run a script. I was reading about the problem with print and its performance, but I cannot figure out how to reduce the impact. The algorithm is O(n^2). The ...
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SQL Server 2008 R2 clustered index issue

Last week, we came up with a strange issue on Clustered index. We are using SQL Server 2008 R2 in our organization. A stored procedure is written for our application which contains a cursor in it. ...
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PLSQL using cursors or functions to query repeated data

Is it better to declare a commonly used lookup query as a package function or as a function (either returning rows or values or returning a sysref cursor)? Whats the difference? What are the best ...
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SQL SERVER 2008 Cursor Problem

I have a table that has some missing values for certain transactions. The value for a particular transaction is going to depend on the value of all preceding transactions. Because the preceding ...
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Does MySQL close cursor if stored procedure encounters an exception?

I've seen two different approaches of cursor handling is MySQL stored procedures. Now I'm curious about their stability, due to potential MYSQLEXCEPTION risks in stored routines. Assuming, that ...
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Map records to a time interval

I have two tables: SamplesTbl contains samples every 5 seconds of a bike ride RxTbl contains the prescribed stages and other values of a bike ride SamplesTbl SamplesID int SessionNum int StageNum ...
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stored procedure returns ERROR 1305 (42000): FUNCTION does not exist

I have a stored procedure and function as below CREATE PROCEDURE ProcName() begin .... DECLARE curs CURSOR FOR select A.PList, B.nid from persons A inner join articles B on A.aid=B.id; .... ...
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How can I replace the cursor in the below query?

I have this below query which calls a stored procedure that takes only 1 item's attributes at a time. But because of performance problems we are required to remove the cursor. How can I replace the ...
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Mysql cursor alternative / Optimization - each row updates are too slow

I'm looking to optimize my cursor based update or actually replacing it... Situation We're carrying out promotional campaigns and I'd like to track user activity per campaign. Logic Each campaign ...
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Creating a table of possible values from multiple inputs

I have a list of datasets. I want to put the column names, and types, into a new consolidated table with a unique reference number. e.g.: Table 1 has 6 unique columns Table 2 has 22 unique columns ...
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SELECT from Function that return CURSOR

I would like to select from a function that return a SYS_REFCURSOR Type value. for example : CREATE OR REPLACE FUNCTION my_funtion ( my_param IN VARCHAR2) RETURN SYS_REFCURSOR IS ...
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Cursor brings back Null when run

I'm trying to create a proc which assists in creating an XMLSitepath. I am trying to use a cursor but its not behaving as it should. Please could someone take a look and tell me where I am going ...
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Using mysql cursor data to do something for each row

I have a table incoming_sms and another table subscribers_register and another table test_subject. Some of the subscribers in the table subscribers_register have sent in some sms and the messages are ...
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Curious Regarding filtering behaviour and performance of where condition

So i have completed the clean up of SQL code that involves four set of queries that partially do the same filtering in where condition , while the rest of the part do their own task specific to each ...
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merge in cursor is slow ,any alternative for that in oracle 11g

we have a requirement like below. we need to update one table A from another table B based on joining criteria. both tables are having porper joining columns. Table A has 2 columns missing_order_cw ...
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Save a dynamic cursor for reuse?

I have a search page where users can select from multiple variables. When the page is submitted to a package in the database a cursor is constructed and opened. a snippet to show what I mean ...
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FOR loop oracle query with calulation

I have a list of distinct areas, and would like to track statistics for those districts in a SQL statement. I currently have a setup that runs some summary information, but it doesn't include the ...
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How can I take table as input dynamically from user?

I am new to SQL server and want to take table name and column names as input from user dynamically. Also, need to perform cursor implementation of comparing records on it. I have completed the ...