Sql procedure loop while updating records using cursors
Pinal Dave is a SQL Server Performance Tuning Expert and an independent consultant.
Note: The material on triggers that was formerly in this document has been moved to A New Document on Constraints and Triggers. PL/SQL extends SQL by adding constructs found in procedural languages, resulting in a structural language that is more powerful than SQL. All PL/SQL programs are made up of blocks, which can be nested within each other.Every variable has a specific type associated with it. In this case, it is essential that the variable have the same type as the relation column.If there is any type mismatch, variable assignments and comparisons may not work the way you expect.Multiple Quizzes on Overview, Modelling, Architeture, and Administration 3. Series of Interview questions to brushup your HANA skills This app is an All-In-One package to provide everything to Hadoop Lovers. The cursor is defined with a name, optionally a list of parameters, and an SQL SELECT statement. A cursor is a set of rows together with a pointer that identifies a current row.ie, slno 1 employee Id 1 time 6(in hr) can u plz help me sir,, I am trying to make use of the while loops for the following application: My data is in the form (data source Excel): Name, Group, FY13Q1, FY13Q2 Name1, Software, Project1, Project2 Name2, Hardware, Project2, Project3 ….
each additional row lists a new employee, the group they belong to and which project they’re working on in a given quarter.
*/ EXCEPTION /* Exception handling section: error handling statements go here. The executable section also contains constructs such as assignments, branches, loops, procedure calls, and triggers, which are all described below (except triggers). C style comments ( or by putting the code in a file and invoking the file in the various ways we learned in Getting Started With Oracle.
Information is transmitted between a PL/SQL program and the database through variables. In many cases, a PL/SQL variable will be used to manipulate data stored in a existing relation.
Typically, each block performs a logical action in he program.
A block has the following structure: DECLARE /* Declarative section: variables, types, and local subprograms.
To be safe, instead of hard coding the type of a variable, you should use the This program has no effect when run, because there are no changes to the database.