external table的研究

DROP DIRECTORY DIR_ANALYSIS_LOG;
CREATE DIRECTORY DIR_ANALYSIS_LOG AS '/home/matchkf/bin';
DROP TABLE tb_analysis_log;
CREATE TABLE tb_analysis_log
(
	v_head VARCHAR2(100),n_count NUMBER,v_flag1 VARCHAR2(10),v_event VARCHAR2(100),
	v_flag2 VARCHAR2(10),n_totaltime NUMBER,n_eventtime NUMBER
)
ORGANIZATION EXTERNAL
(
	TYPE oracle_loader
	DEFAULT DIRECTORY DIR_ANALYSIS_LOG
	ACCESS PARAMETERS
	(
		records delimited BY newline characterset zhs16gbk
		badfile 'log.bad'
		LOGFILE 'log.log'
		readsize 1048576
		fields terminated BY ',' optionally enclosed BY '"' ldrtrim
		REJECT ROWS WITH ALL NULL fields
	)
	LOCATION
	(
		'log.txt'
	)

) REJECT LIMIT UNLIMITED;


 

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转载自blog.csdn.net/levin_li/article/details/7428587