cursors

问题 I often have to debug cursors in Oracle PL/SQL. My problem is that I end up with a few hundered lines big cursors with like 50+ variables and constants. I'm searching for a way to get a version of the statement where constants and variables are replaced with their literals. If I want to find out why the cursor isn't showing the record/line it should I end up replacing those variables/literals for 30 minutes before I can run the select and comment out some of the statements to find out what's

问题 We have a Spring Boot application where we need to connect to Oracle DB and fetch data via stored procedures. Each of our stored procedure has REF_CURSOR as OUT parameters. I am trying the same using @NamedStoredProcedureQuery and @Entity annotations. We are using ojdbc14.jar in pom.xml and Oracle12cDialect in application.properties file. I get the exception Invalid Column Name while executing my piece of code. Also in the entity class I had to introduce a field with annotation @Id , although

问题 We have a Spring Boot application where we need to connect to Oracle DB and fetch data via stored procedures. Each of our stored procedure has REF_CURSOR as OUT parameters. I am trying the same using @NamedStoredProcedureQuery and @Entity annotations. We are using ojdbc14.jar in pom.xml and Oracle12cDialect in application.properties file. I get the exception Invalid Column Name while executing my piece of code. Also in the entity class I had to introduce a field with annotation @Id , although

问题 I am trying to change the windows cursors (the default is Windows Custom Scheme) to my custom cursors (It named Cut the rope): Is there any idea to change all of cursors (Arrow, Busy, Help Select, Link select,...) to my Cut the rope? 回答1: If you want to change the default Mouse Cursor theme: You can just change it in the registry: There are three main registry keys that come into play. The registry key HKEY_CURRENT_USER\Control Panel\Cursors contains the active user cursors 1a) The values

问题 Quick question about cursors (in particular Oracle cursors). Let's say I have a table called "my_table" which has two columns, an ID and a name. There are millions of rows, but the name column is always the string 'test'. I then run this PL/SQL script: declare cursor cur is select t.id, t.name from my_table t order by 1; begin for cur_row in cur loop if (cur_row.name = 'test') then dbms_output.put_line('everything is fine!'); else dbms_output.put_line('error error error!!!!!'); exit; end if;

问题 I have a question. I am working on cursors. Each time, after fetching the last records and printing its data’s, the cursor prints an addition line. To understand what I mean please consider the following sample example: I want to print the information about only 10 customers. USE Northwind GO DECLARE myCursor CURSOR FOR SELECT TOP(10) ContactName FROM Customers DECLARE @RowNo int,@ContactName nvarchar(30) SET @RowNo=1 OPEN myCursor FETCH NEXT FROM myCursor INTO @ContactName PRINT LEFT(CAST(

问题 So I have 2 tables, communication ,and movement . communication has columns fromID , timestamp that has ID of caller, and time the call was made. Then I have another table movement that has ID , timestamp , x , y , that has the ID of a person, their location (x,y) , and the time that they are at that location. I want to write a query that looks something like this: For every single row of communication(R) SELECT * FROM movement m WHERE m.ID = R.fromID && m.timestamp <= R.timestamp ORDER BY

问题 I want to write pl/sql code which utilizes a Cursor and Bulk Collect to retrieve my data. My database has rows in the order of millions, and sometimes I have to query it to fetch nearly all records on client's request. I do the querying and subsequent processing in batches, so as to not congest the server and show incremental progress to the client. I have seen that digging down for later batches takes considerably more time, which is why I am trying to do it by way of cursor. Here is what

问题 I am creating a SQL 2008 R2 stored procedure to duplicate a row and all it's children. It's a 3-tiered setup with a Parent, Child and Sub-Child Given the ID of the parent I need to create a duplicate. I have solved it using a fast_forward cursor . I know I can also do it with a while loop through rows but I do not believe that will be faster than this cursor method. What are your thoughts? Is there a better way to accomplish this task without using cursors? EDIT: Another option I considered

问题 My company wants to publish a library for android, so that other people can integrate our content easily in their custom apps. Now I am still very uncertain how I should provide the content. Right now I am using POJOs to provide the data in my project. I was following the debate "POJOs vs. Cursors" which turned out in favor of Cursors. I also have seen an example where somebody stores the parsed resource in a SQLLite-DB and accesses it later through Cursors. I know that Cursors have many