Contemporary wisdom suggests that stored procedures universally offer performance advantages over inline SQL statements. However, it is crucial to examine whether this assumption holds true in the context of modern relational database management systems (RDBMSs).
Historically, the performance benefits attributed to stored procedures stemmed from the following factors:
In modern RDBMSs, these advantages have been tempered by advancements in optimization techniques and network infrastructure:
Parameterized SQL offers a compromise between stored procedures and ad hoc SQL by allowing SQL statements with parameters to be cached and reused, gaining some of the performance benefits without the procedural code overhead.
Modern RDBMSs can "abstract" ad hoc SQL into parameterized versions, effectively eliminating significant performance differences.
In general, for fairly vanilla SQL, the performance difference between ad hoc and stored procedure statements has diminished significantly in modern RDBMSs. While stored procedures may still provide advantages in specific edge cases, premature optimization based solely on performance concerns should be avoided. By considering the trends and capabilities of contemporary databases, developers can make informed decisions about the appropriate usage of stored procedures and inline statements to achieve optimal results.
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