Using External Tables to Invoke Linux Utilities and Hold the Data Received By Yuli Vasiliev You might use external tables to query operating system data. As a preprocessor program to be used in your external table, you might create a shell script calling a Linux utility, such as ls, df, or ps. Moreover, you can pass arguments to the utility...
Tag: external table
External Table as a Data Loading Tool
External Table as a Data Loading Tool By Yuli Vasiliev The external tables feature can be used as a data loading tool – a good alternative to SQL Loader. You can create the external table with the SQL CREATE TABLE…ORGANIZATION EXTERNAL statement. Before you can do that, though, you have to set up a directory where the external table data...