database - stored procedure

--When verifying that the stored procedure is correct, you need to use the declare block.

 declare

  i integer;

  v_sql varchar2(1000);

  -- define cursor

  CURSOR C_EMP IS SELECT category FROM act_hq_tem_def;

  

  begin

    

 select  count(*) into i from user_tables t where t.table_name ='SSS';

   dbms_output.put_line('The value of I is:');

   dbms_output.put_line(i);

  

 if i=1 then 

   execute immediate 'drop table sss'; end if;

 IF I=0 THEN

   execute immediate '

   create table sss( 

   name number(20) )';

   end if;

  

  

   dbms_output.enable(1000000);

   

   for tab in (

     select t.guid gd, t.name  nm  from fasp_T_causer t

     )

     

     loop --loop is the beginning of the loop, and the end mark loop end is required. 

    

   v_sql := 'select count(*) from fasp_T_causer';

   execute immediate v_sql into i;

   

     If i > 0 then

      DBMS_OUTPUT.PUT_LINE(tab.nm || ' tab 中的name值  ' || tab.gd );

    end if;

    end loop ;

    

  

    

 -- traverse the cursor

for c_row22 in c_emp loop 

    if substr(c_row22.category,-4) ='2016' then 

      dbms_output.put_line('Process type' || c_row22.category);  

   end if;

   end loop ;  

     

 ------------------------------------------------------------  

   

   

   

    

 -- create stored procedure   

 create or replace procedure p_wf_cf(yn varchar2,yo varchar2,allds out varchar2) as

 cursor c_emp is select category from act_hq_tem_def;

 tablec1 number;

 begin

  select count(*) into tablec1 from user_tables where table_name='ACT_HI_PROCINST_' || yn;  

   allds := tablec1;

   end  p_wf_cf;




--Call the stored procedure, and the output value is also passed in the function. The output value can then be replaced and printed.

declare

  v_titleAVARCHAR2(20) := '2017';

    v_titlebVARCHAR2(20) := '2016';

    v_titlec11VARCHAR2(20) :='12';

begin

 p_wf_cf(v_titleA,v_titleb,v_titlec11);

  v_titlec11 :=p_wf_cf(v_titleA,v_titleb); --The return operation is required in the stored procedure to use this method. 

  dbms_output.put_line('Output value:' || v_titlec11);

 end;







-- write stored procedure

create or replace procedure p_fasp_sc (dblink in varchar) as

  type refcursor is ref cursor;--Define the cursor type

  col_cursor refcursor;--Define the cursor variable

v_deptRowfasp_T_causer%ROWTYPE;-- define the row type

v_empRowfasp_T_causer%ROWTYPE;-- define the row type

  tablename  varchar2(100);

  tmpsql varchar2(20000);

  exesql  varchar2(20000);

  

  v_enoemp.empno%TYPE ; -- The same type as the empno field type in the emp table.

  v_resultA NUMBER NOT NULL := 100 ; -- define a non-null variable v_resultA and assign a value at the same time

  v_enameVARCHAR2(10) ;

   v_deptRowdept%ROWTYPE ;-- Load a row of records from the dept table

   v_date1DATE := SYSDATE ;--Define the time

  

  type emp_type is recode(

  ename emp.ename%type,

  job  emp.job%type,

  sal emp.sal%type,

  comm emp.comm%type

  );

  v_emp emp_type;--Define a specified composite type variable

  

begin

  

  v_eno: = & empno;-- Enter employee number by keyboard

   SELECT * INTO v_deptRow FROM dept WHERE deptno=10 ;--Query a row of records in v_deptRow.

   

   

   

  tmpsql :='select table_name as tablename from fasp_v_usertables where table_name like ''FASP_T_GL%''';


open col_cursor for tmpsql; -- open the cursor

loop 

  fetch col_cursor into tablename ; -- get cursor data

  exit when col_cursor%notfound; -- exit if there is no data

  exesql := 'select count(*) from fasp_v_usertables';

  

  begin

    execute immediate exesql;

    exception

      when others then

        dbms_output.put_line('baocuole');

        raise;

       end;

end loop; 

close col_cursor;

end;




-- call stored procedure

declare

  v_titleAVARCHAR2(20) := '1212';

begin

 p_fasp_sc(v_titleA) ;

 end;

  

 

-- subroutine

if 。。then 。。 else

and 

or

between and

is null

not null

like


--case

 CASE v_choose

    WHEN 0 THEN

      DBMS_OUTPUT.put_line('You selected item 0.');

    WHEN 1 THEN

      DBMS_OUTPUT.put_line('You selected item 1.');

    ELSE

      DBMS_OUTPUT.put_line('No options are satisfied.');

  END CASE ;  


RAISE -- An exception was reported. 

COMMIT ;

--for





declare 

--type definition

    c_sal cursor

    is 

    select empno,ename,sal from emp ;

    --Define a cursor variable v_cinfo c_emp%ROWTYPE, which is the data type of a row in the cursor c_emp

    c_row c_sal%rowtype;

 begin

    for c_row in c_sal loop 

    dbms_output.put_line(c_row.empno||'_'||c_row.ename||'-'||c_row.sal); end loop; 

    end;


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