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While SQL is inherently a declarative language, meaning it focuses on what data to retrieve, rather than how to retrieve it, there are scenarios where we might need to perform iterative operations. SQL provides a few methods to help us loop through records in database management systems likeMyS...
This post demonstrates the process to use the exit statement to terminate a loop in PostgreSQL. PL/pgSQL Exit Statement: How to Terminate a Loop The EXIT statement can be used to terminate the body of the loop before the actual ending of the loop by providing some conditions to this statem...
how to create a contact us page in MVC ? how to create a daily trigger and run a stored procedure in sql server How to create a Dual Listbox and transfer the delected items to back end from MVC web application? How to create a dynamic table with data comming from model, in MVC Ho...
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.
In a future blog, I'll provide sample SQLCLR code and a script using a table variable to create autonomous transactions. I will also compare their performance differences with loopback linked server in a scalability test. Stay tuned.Appendix...
This chapter is a basic tour of the kernel-provided device infrastructure in a functioning Linux system. 本章是对Linux系统中内核提供的设备基础架构的基本介绍。 Throughout the history of Linux, there have been many changes to how the kernel presents devices to the user. We’ll begin by looking...
Another method to concatenate strings isString.Format. This method works well when you're building a string from a few component strings. StringBuilder In other cases, you might be combining strings in a loop where the actual number of source strings can be large. TheStringBuilderclass was desig...
Part 1 is it does the job, you can extend the limit to say 50K in one hit. use mydb; set autocommit=0; drop procedure delete_table_incrementally; delimiter // create procedure delete_table_incrementally() modifies sql data begin
SQL Server: Geometry Oracle: ST_Geometry SDO_Geometry In a SQL Server application, create a cursor or loop to iterate through the input database table. Create a geometry for each row. Note:This procedure works best if a unique identifier column exists in the input database table, such as ...