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Define External Table in a Text File in Oracle
How To Define an External Table in a Text File in Oracle?
✍: FYIcenter.com
You can use the CREATE TABLE statement to create external tables. But you need to use ORGANIZATION EXTERNAL clause to specify the external file location and the data access driver. The tutorial exercise below shows you how to define an external table as a text file:
>sqlplus /nolog SQL> connect HR/fyicenter SQL> CREATE TABLE ext_fyi_links ( id NUMBER(4), url VARCHAR2(16), notes VARCHAR2(16), counts NUMBER(4), created DATE ) ORGANIZATION EXTERNAL ( TYPE ORACLE_LOADER DEFAULT DIRECTORY test_dir LOCATION ('ext_fyi_links.txt') ); Table created. SQL> SELECT table_name, tablespace_name, num_rows FROM USER_TABLES; TABLE_NAME TABLESPACE_NAME NUM_ROWS --------------------- ---------------------- ---------- REGIONS USERS 4 LOCATIONS USERS 23 DEPARTMENTS USERS 27 JOBS USERS 19 EMPLOYEES USERS 107 JOB_HISTORY USERS 10 FYI_LINKS USERS 2 EXT_FYI_LINKS COUNTRIES 25
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2016-10-19, 2331👍, 1💬
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