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Full Discussion: Intelligent Script to Insert Records in Database Table
Top Forums Shell Programming and Scripting Intelligent Script to Insert Records in Database Table Post 302930511 by chetanojha on Monday 5th of January 2015 07:28:40 AM
Old 01-05-2015
Dear RudiC,

Please see my reply below in blue. I hope I am making sense.

Quote:
Originally Posted by RudiC
Did you consider the threads proposed at the bottom of this page?
Yes, I have seen the links below. Most of them proposing to use the sqlldr which is something I cannot use in this case. I am currently using External tables (via OWB). But there is a restriction for that too. When file arrives with random order of the column name, the implicit sqlldr of the external table starts throwing error.

Some questions reg. your requirement:
- How does the script know the table name?
Yes, I can arrange for script to know the name of the table based on the filename. I can pass name of the table as input parameter to script which can them embedded into the dynamic sql created by the script.

- Is it always the same?
Yes, table name will always be the same. And so will be the column name. Ofcourse tablename and columns will be different from source file to source file but I think if we can achieve the basic functionality - that will not matter anymore (?)

- Will the table be deleted somewhere else?
The nature and source of the data is such that I do not have any visibility of it. I do not know from where it is coming or how the files is created. Otherwise , I would have asked source side to provide file in a fixed format which can be uploaded into the database table (via sqldr or external table) straight way.

- How does the script know the data type of the columns?
Script doesn't need to know the datatype of the column. I can arrange all columns to be of VARCHAR2 type. So that records are loaded irrespective of the data. This can further interpreted or casted into their respective datatypes.

- Will the date format always be the same?
Yes. Date format will be same for all the records and for all the files.
 

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