sql存储过程算法

MSSQL执行 ： exec proc_NAME

ORACLE ：

begin
proc_NAME;
commit;
end;

1.求素数

MSSQL;

 CREATE proc [dbo].[EXEC003] as
 declare @num int;
 begin
 set @num = ;
 while (@num >  )
 BEGIN
    IF(@num % =  )
       BEGIN
       PRINT(@NUM);
       END
    SET @num -= ;
 END
 end

ORACLE:

 create or replace procedure EXEC003 as
  List int := ;
  begin

  while( List >  ) loop
     if mod(List,)  =  then
            Dbms_Output.put_line(List);
           end if;
     List := List - ;
  end loop;
  end;

 --测试
 begin

 exec003 ;
 commit;
 end;

2.费布拉切数列

MSSQL

alter proc Exec004
as
declare @num int;
declare @Sum int;
declare @min int;
declare @max int;
declare @curr int;
set @num = ;
set @min = ;
set @max = ;
set @curr = ;
set @Sum = ;
--、、、、、、、
begin
    if( @num = )
       begin
        set @max = ;
       end
     else if (@num = )
        begin
        set @max = ;
        end
     else
         begin
    while ( @curr <= @num )
      begin
        set @Sum = @max + @min;
        set @min = @max;
        set @max = @Sum;
        set @curr += ;
      end
          end
      print( @max);
end

ORACLE

create or replace procedure Exec004
as
curr  int := ;
max1  int := ;
min1  int := ;
sum1   int := ;
num   int := ;
begin
   if(num =  ) then
      begin
        sum1 := ;
      end;
    elsif  ( num =  ) then
       begin
         sum1 := ;
       end;
    else
           while( curr <= num ) loop
              sum1 := max1 + min1;
              min1 := max1;
              max1 := sum1;
              curr := curr + ;
           end loop;
    end if;
    DBMS_OUTPUT.PUT_LINE(sum1);
end;

3.判断表是否10列，有10列则打出制定列数

MYYSQL

alter proc forEachData(@num int)  as
declare @curr int;
declare @temId varchar();
begin
set @curr = ;
   if( (select COUNT(*) from jcms_module_article ) > )
      begin
            print('this number gt 10');
            while(@curr <@num)
              begin
               select @temId = m.Title from ( select ROW_NUMBER() OVER (ORDER BY Id) rn,Title  from jcms_module_article t) m where m.rn = @curr;
               print( Convert( varchar(), @curr) + ':' + @temId);
               set @curr += ;
              end
      end
   else
      print('this number lt 10');
end

ORACLE

create or replace procedure forEachData(num in out int) as
curr int :=  ;
temValue varchar();
countNum int;

begin
   select  count( *) into countNum  from cod_biz_codes;
   if( curr <= ) then
       begin
         Dbms_Output.put_line('is number gt 10');

         while( curr <= num ) loop
           select  t.doc_spec into temValue from (  select row_number() over( order by doc_type) rn , DOC_SPEC  from cod_biz_codes ) t where t.rn = curr ;
           Dbms_Output.put_line( curr || ','|| temValue);
           curr := curr + ;
         end loop;
       end;
    else
       DBMS_OUTPUT.put_line('is number lt 10');
    end if;
end;

/*
测试：
declare num int := 10;
begin
forEachData(num);
end;

*/