So, lets start with what happens the first time you run a stored procedure. A compiler is likely to perform many or all of the following operations: lexical analysis, preprocessing, parsing, semantic analysis, code generation, and code optimization. Ok, thats not quite accurate and too short of an answer. This option cant be used when FOR REPLICATION is specified or for CLR procedures. For more information regarding the reasons for forcing a recompile, see Recompile a Stored Procedure. With Recompile option tells SQL server not to cache the Query plan and generate a brand new one.(Result : generates a good plan and Performs well) Without recompile option tells SQL server to reuse the plan in cache if its available(but its not there since I cleared the plan cache), or generate a new plan. It instructs Adaptive Server not to save a. A language rewriter is usually a program that translates the form of expressions without a change of language. Indicates that the Database Engine doesnt cache a query plan for this procedure, forcing it to be compiled each time it is executed. In the create procedure statement, the optional clause with recompile comes immediately before the SQL statements. A program that translates between high-level languages is usually called a language translator, source to source translator, or language converter. A program that translates from a low level language to a higher level one is a decompiler. If the compiled program can run on a computer whose CPU or operating system is different from the one on which the compiler runs, the compiler is known as a cross-compiler. The name "compiler" is primarily used for programs that translate source code from a high-level programming language to a lower level language. The most common reason for wanting to transform source code is to create an executable program. Compiler A compiler is a computer program that transforms source code written in a programming language into another computer language. If we know that a statement returns a varying amount of data (based on the parameters supplied) then we can use the SQL Server 2005 feature WITH RECOMPILE to tell SQL Server that the statement being executed should have it’s own plan created and that prior plans (if they exist) should not reuse the statement.
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |