what is SQL Loader?
The primary method for quickly populating Oracle tables with data from external files is called SQL*Loader. From its powerful data parsing engine that puts a little limitation on the format of the data in the datafile. SQL*Loader is invoked when you specify the sqlldr command or use the Enterprise Manager interface.
SQL*Loader is an integral feature of Oracle databases and is available in all configurations.
Follow these steps to perform SQL Loader
- Create a file and give it a name (Ex: data_1.txt)
- Insert some valuable data in it. Here we have insert the following things into data_1.txt
1, Anuradha 2, Priya 3, Jack 4, Himanshu 5, Jissy 6, Joel
- Create a SQL Loader control file and give it a name. Here we have create a control file which name is LOADER_1.CTL
load data infile ‘c:\data_1.txt’ into table info fields terminated by ‘,’ (id,name)
Now create a table in database
SQL>CREATE TABLE info_1(id number,name varchar(30)); [Under Scott user]
Run the sqlldr
C:\>sqlldr userid=scott/abc#23 CONTROL=c:\LOADER_1.CTL
Now, we can fetch the data from tables
SELECT * FROM info_1;
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