Maximu number of rows in cursor

Question

Hi,
How many rows i can fetch into the cursor.
is there any restriction.
when the number of rows increase will the db face the slowness?
Thanks
siva

Answer 1

thanks
this is my code
CREATE OR REPLACE PROCEDURE PRC_FILE_UPLOAD(n_eodid NUMBER,job_id NUMBER,return_status OUT VARCHAR2) IS
n_col          NUMBER(10);
n_colcnt      NUMBER(10) :=0 ;
v_eodmetadata     EOD_METADATA_DET%ROWTYPE;
v_eodtable     VARCHAR2(100);
sql_stmt      VARCHAR2(4000);
sql_stmt1      VARCHAR2(4000);
colval      varchar2(4000);
eodid          NUMBER(10) := n_eodid;
jid          NUMBER(10) := job_id;
charbuf VARCHAR2(4000);
lopcnt     NUMBER(10) :=0 ;
s          NUMBER(10) :=0 ;
vals          VARCHAR2(4000);
no_data      EXCEPTION;
result     VARCHAR2(100);
CURSOR clob_ins IS SELECT * FROM EOD_METADATA_DET WHERE eod_id = EODID
AND UPPER(ORCL_COL_NME) !='FILLER' ORDER BY SEQ;
BEGIN
OPEN clob_inS;
LOOP
FETCH clob_ins INTO v_eodmetadata;
     v_eodtable := v_eodmetadata.orcl_tbl_nme;
EXIT WHEN clob_ins%notfound;
colval := colval||' '||v_eodmetadata.ORCL_col_NME||',' ;
n_col := v_eodmetadata.col_size;
END LOOP;
sql_stmt := 'INSERT INTO '||v_eodtable||'(';
sql_stmt1 := sql_stmt||COLVAL;
sql_stmt1 := SUBSTR(sql_stmt1,1,LENGTH(sql_stmt1)-1)||')VALUES';
CLOSE clob_ins;
FOR jval IN (SELECT * FROM EOD_FLAT_DATA)
LOOP
lopcnt := 0;
n_colcnt :=0;
s:=s+1;
IF s <= 1 THEN
s:=s+1;
ELSE /* from second row onwards */
charbuf := jval.EODDATA;
FOR seq IN (SELECT col_size,TYPE FROM EOD_METADATA_DET WHERE eod_id = EODID AND UPPER(ORCL_COL_NME) !='FILLER'
ORDER BY SEQ)
LOOP
n_col := seq.col_size;
lopcnt := lopcnt + 1;
IF lopcnt = 1 THEN /* for first column WIDTH */
vals := SUBSTR(charbuf,1,n_col);
n_colcnt := n_colcnt + n_col;
ELSE
IF seq.type = 'CHAR' THEN
vals := vals||','||''''||SUBSTR(charbuf,n_colcnt+1,n_col)||'''';
ELSIF seq.type = 'NMBR' THEN
vals := vals||','||SUBSTR(charbuf,n_colcnt+1,n_col);
ELSIF seq.type = 'DATE' THEN
VALS := vals||','||''''||to_char(to_date(SUBSTR(charbuf,n_colcnt+1,n_col),'dd/mm/RR'),'dd-mon-yyyy')||'''';
ELSE
vals := vals||','||''''||SUBSTR(charbuf,n_colcnt+1,n_col)||'''';
END IF;
n_colcnt := n_colcnt + n_col;
END IF;
END LOOP;
END IF;
IF length(vals)>1 THEN
sql_stmt1 := sql_stmt1||'('||vals||')';
EXECUTE IMMEDIATE sql_stmt1;
return_status := 'SUCCESS';
result := return_status;
END IF;
END LOOP;
EXCEPTION
WHEN DUP_VAL_ON_INDEX THEN
return_status := 1;
result := return_status;
RAISE_APPLICATION_ERROR(-20010,'UNIQUE CONSTRAINT VIOLATION ERROR');
WHEN OTHERS THEN
return_status := 'FAILED';
result := return_status;
RAISE_APPLICATION_ERROR(-20010,'CHECK UR INSERT STATEMENT');
END PRC_FILE_UPLOAD;