Difference between a cursor and a cursor variable in PL/SQL programming
In PL/SQL programming, a cursor is a pointer that points to the result set of a SQL query. It is used to fetch and process individual rows returned by the query. On the other hand, a cursor variable is a PL/SQL data type that holds the address of a cursor and allows dynamic execution of queries.
One key difference is that a cursor is static and its query is fixed at compile time, while a cursor variable allows for dynamic SQL statements to be executed at runtime.
Additionally, a cursor can only be associated with a single query, whereas a cursor variable can be associated with different queries at different points in the program execution.
Overall, the choice between a cursor and a cursor variable depends on the specific requirements of the program, with cursor variables offering more flexibility and dynamic capabilities compared to traditional cursors.
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