Saya tahu ini adalah pertanyaan lama, tetapi ini masih merupakan pertanyaan yang relevan. Untuk pencari masa depan di sini adalah prosedur yang saya tambahkan ke paket utilitas kami yang menghasilkan file kontrol kerangka untuk sebuah tabel. Berikan nama tabel dan itu menghasilkan file kontrol default yang dapat Anda atur jika diperlukan. Anda mungkin perlu mengedit agar sesuai dengan kebutuhan Anda terlebih dahulu.
Panggil seperti ini:
set serveroutput on;
exec utils.gen_ctl_file('TABLE_NAME');
Prosedurnya:
/********************************************************************************************************
Name: GEN_CTL_FILE
Desc: Generates a skeleton control file from a table for loading data via SQL*Loader.
Args: tablename_in IN VARCHAR2, delim_in VARCHAR2 DEFAULT '|'
Returns: None.
Usage: utils.gen_ctl_file('tablename');
Notes: Prints a skeleton control file.
If a template for a fixed-length data file is desired, use 'FIXED' for the delim_in string.
Example usage:
set serveroutput on;
execute utils.gen_ctl_file('tablename');
************************************************************************************************************************/
PROCEDURE GEN_CTL_FILE(tablename_in IN VARCHAR2, delim_in VARCHAR2 DEFAULT '|') IS
ERRNULLTABLENAME CONSTANT NUMBER := -20103; -- User-defined error numbers and messages.
ERRNULLTABLENAMEMSG CONSTANT VARCHAR2(100) := 'A table name is required.';
USAGE CONSTANT VARCHAR2(100) := '* USAGE: UTILS.GEN_CTL_FILE(tablename_in IN VARCHAR2, fieldsep_in VARCHAR2 DEFAULT ''|'')';
v_delim VARCHAR2(20) := NVL(delim_in, '|');
err_nbr NUMBER;
err_msg VARCHAR2(1000);
CURSOR COL_CUR IS
SELECT COLUMN_NAME,
DECODE(COLUMN_ID, 1, ' ', ',') || RPAD(COLUMN_NAME, 32) || case upper(v_delim)
when 'FIXED' then 'POSITION(99:99) '
else NULL
end|| DECODE(DATA_TYPE,
'VARCHAR2', 'CHAR NULLIF(' || COLUMN_NAME || '=BLANKS)',
'CHAR', 'CHAR NULLIF(' || COLUMN_NAME || '=BLANKS)',
'FLOAT', 'DECIMAL EXTERNAL NULLIF(' || COLUMN_NAME || '=BLANKS)',
'NUMBER', DECODE( DATA_PRECISION,
0, 'INTEGER EXTERNAL NULLIF (' || COLUMN_NAME || '=BLANKS)',
DECODE(DATA_SCALE, 0, 'INTEGER EXTERNAL NULLIF (' || COLUMN_NAME || '=BLANKS)', 'DECIMAL EXTERNAL NULLIF (' || COLUMN_NAME || '=BLANKS)')),
'DATE', 'DATE "MM/DD/YYYY" NULLIF (' || COLUMN_NAME || '=BLANKS)',
data_type)
AS COL_DATA
FROM USER_TAB_COLUMNS
WHERE TABLE_NAME = UPPER(tablename_in)
ORDER BY COLUMN_ID;
BEGIN
IF tablename_in IS NULL THEN
RAISE_APPLICATION_ERROR(ERRNULLTABLENAME, ERRNULLTABLENAMEMSG || CHR(10) || USAGE);
END IF;
DBMS_OUTPUT.PUT_LINE('--');
DBMS_OUTPUT.PUT_LINE('-- NOTE - When using DIRECT=TRUE to perform block inserts to a table,');
DBMS_OUTPUT.PUT_LINE('-- the table''s triggers will not be used! Plan accordingly to');
DBMS_OUTPUT.PUT_LINE('-- manually perform the trigger actions after loading, if needed.');
DBMS_OUTPUT.PUT_LINE('--');
DBMS_OUTPUT.PUT_LINE('OPTIONS (DIRECT=TRUE)');
DBMS_OUTPUT.PUT_LINE('UNRECOVERABLE');
DBMS_OUTPUT.PUT_LINE('LOAD DATA');
DBMS_OUTPUT.PUT_LINE('APPEND');
DBMS_OUTPUT.PUT_LINE('INTO TABLE ' || UPPER(tablename_in));
DBMS_OUTPUT.PUT_LINE('EVALUATE CHECK_CONSTRAINTS');
if upper(v_delim) != 'FIXED' then
DBMS_OUTPUT.PUT_LINE('FIELDS TERMINATED BY ''' || v_delim || ''' TRAILING NULLCOLS');
end if;
DBMS_OUTPUT.PUT_LINE('(');
-- The cursor for loop construct implicitly opens and closes the cursor.
FOR COL IN COL_CUR
LOOP
DBMS_OUTPUT.PUT_LINE(COL.COL_DATA);
END LOOP;
DBMS_OUTPUT.PUT_LINE(')' || CHR(10));
EXCEPTION
WHEN OTHERS THEN
err_nbr := SQLCODE;
err_msg := SUBSTR(SQLERRM, 1, 1000);
-- if any error occurs, print the SQLCODE message.
DBMS_OUTPUT.PUT_LINE('ERROR: ' || err_nbr || ' occurred: ' || err_msg);
END; -- GEN_CTL_FILE
