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CREATE PROCEDURE (Transact-SQL)

?Transact-SQL?????????????????????T-SQL?????????????????????????????

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CREATE [OR ALTER] {PROC | PROCEDURE}     [schema_name.] procedure_name [ ; number ]     [ { @parameter [type_schema_name. ] data_type }         [VARYING] [ = default ] [OUT | OUTPUT | [READONLY]]         ] [ ,...n ] [ WITH             
   
             
   
    
                 [ ,...n ] ][ FOR REPLICATION ] AS { [ BEGIN ] sql_statement [;] [ ...n ] [ END ] }[;]    
    
     
    
     
         ::= [ ENCRYPTION ] [ RECOMPILE ] [ EXECUTE AS Clause ]    
    
   

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CREATE PROC ProGetAuthorsASSELECT * FROM authorsGOEXEC ProGetAuthors

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??EXECUTE??

EXEC [execute_permission]     [@return_status =] (procedure_name [; number] @procedure_name_var, ..., [WITH RECOMPILE])    [@parameter =] {value | @variable [OUTPUT] | [DEFAULT]}    ,...

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CREATE PROC procGetAvgMaxMin     @course_name char (20)ASSELECT AVG(exam) AS ???,        MAX(exam) AS ???,        MIN(exam) AS ???FROM score AS sINNER JOIN course AS c ON s.cno = c.cnoWHERE c.cname = @course_nameGOEXEC procGetAvgMaxMin '????'

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CREATE PROC procGetAvgMaxMin     @course_name char (20) = NULLASIF @course_name IS NULL    PRINT '???????'ELSE    SELECT AVG(exam) AS ???,            MAX(exam) AS ???,            MIN(exam) AS ???    FROM score AS s    INNER JOIN course AS c ON s.cno = c.cno    WHERE c.cname = @course_nameGOEXEC procGetAvgMaxMin '????'

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CREATE PROC proc2     @x int,     @Y int OUTPUTASDECLARE @i int, @t intSELECT @i = l, @t = lwhile @i < @x    begin        select @t = @t * @i        select @i = @i + 1    endselect @Y = @tGOEXEC proc2 5

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CREATE PROC proc3     @course_name char (20)ASDECLARE @avg_score intSELECT AVG(exam) AS ???, MAX(exam) AS ???, MIN(exam) AS ???    FROM score AS s    INNER JOIN course AS c ON s.cno = c.cno    WHERE c.cname = @course_nameSELECT @avg_score = AVG(exam)    FROM score AS s    INNER JOIN course AS c ON s.cno = c.cno    WHERE c.cname = @course_nameSELECT sno, sname, depart, exam, usually    FROM stu_info AS st    INNER JOIN score AS s ON st.sno = s.sno    INNER JOIN course AS c ON s.cno = c.cno    WHERE c.cname = @course_name    AND s.exam > @avg_scoreGOEXEC proc3 '????'

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