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Implicit cursors are automatically created by Oracle whenever an SQL statement is executed, when there is no explicit cursor for the statement. Programmers cannot control the implicit cursors and the ...
A cursor is a database object that can be created at runtime. it is used to get data from a result set line by line(or row by row) rather than executing all the rows in the result set at a single time ...
In SQL procedures, a cursor make it possible to define a result set (a set of data rows) and perform complex logic on a row by row basis. By using the same mechanics, an SQL procedure can also define ...
A cursor allow us to retrieve data from a result set in single means row by row. cursor are required when we need to update records in a database table one row at a time.types of cursors static ...
Tim Chapman discusses your iteration choices in SQL Server 2008 and explains why determining which option performs better depends on the situation.