Download file and pipe into a db

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We use this information in order to improve and customize your browsing experience and for analytics and metrics about our visitors both on this website and other media. To find out more about the cookies we use, see our Privacy Policy. Database Logic Once the controller logic has passed along the readable stream and related metadata, the database logic can begin to stream in the file contents.

BLOB, dir: oracledb. Lines The streaming implementation requires a database connection to stay open while the data is being streamed. A connection is obtained from the connection pool and the SQL statement is executed. The Lob instance is obtained from the out binds on the result object and then contentStream is piped into it. Lines Errors triggered on the contentStream instance are triggered on the Lob instance to create a single error handling code path.

Lines If an error occurs on the Lob instance, the connection to the database is closed — this will rollback the transaction automatically. Lines When the finish event is triggered on the Lob instance, the transaction is commited and the id of the row is returned to the controller logic. Downloading Files With Node. Reemit the event to handle the error. A listener is added to the aborted event before the requesting row because that's an async operation and the event could happen while waiting for the row to be returned.

Next, the HTTP headers including metadata related to the file are added to the response. Smart clients, such as browsers, know how to use such headers when downloading files. Finally, the file contents are streamed to the client by piping the Lob stream to the response object. Lines A variable is declared for the bind definitions no execute options are needed as the default return type of Lob is what is needed.

The query is executed and an event listener is added to the close event of the Lob to close the to the database connection.

An additional listener is added to the error event to ensure connections are closed when errors occur. How to import data from text file to mysql database Ask Question. Asked 9 years ago. Active 27 days ago. Viewed k times. How can I import this text file data? Improve this question.

Eric Leschinski k 86 86 gold badges silver badges bronze badges. Add a comment. Active Oldest Votes. It should be as simple as Improve this answer. Omnikrys Omnikrys 2, 17 17 silver badges 13 13 bronze badges. Beforehand, you'll need to set which database you're using with the USE command. In this window, select File name and browse the file where your file saved.

After that click on next button. Figure 7: Select text file After selecting the text file as in the following image, click next. Here select an option where you will login your SQL Server. If you want to import data in the default table, then you can insert, otherwise you are selecting your database table. After that click ok. Now click on Finish Button.