Ms sql select from csv file

The CSV files that are used in the query should not be changed while the query is running. In the long-running query, SQL pool may retry reads, read parts of the files, or even read the file multiple times. Changes of the file content would cause wrong results. Therefore, SQL pool fails the query if detects that modification time of any file is changed during the query execution. In some scenarios you might want to read the files that are constantly appended.

In the appendable files, the existing content is not updated, and only new rows are added. Therefore, the probability of wrong results is minimized compared to the updateable files. This option might enable you to read the frequently appended files without handling the errors. Im most of the scenarios, SQL pool will just ignore some rows that are appended to the files during the query execution. Skip to main content. This browser is no longer supported.

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Note The quoting character must be escaped with another quoting character. It lists information about disk space, and it stores the information in a CSV file. We can use a quick and dirty way of simply replacing all the quotes in the CSV file. How do you know? Well, the data being generated from our Get-DiskspaceUsage should never have double quotes or commas in the data.

However, there are some drawbacks, including:. LogParser is a command-line tool and scripting component that was originally released by Microsoft in the IIS 6. LogParser provides query access to different text-based files and output capability to various data sources including SQL Server.

Download and install LogParser 2. LogParser requires some special handling, which is why we use Start-Process. Some switches and arguments are difficult to work with when running directly in Windows PowerShell. Here is the syntax for running a command to generate and load a CSV file:.

The CreateTable switch will create the table if it does not exist; and if it does exist, it will simply append the rows to the existing table. Also notice that we got two new columns: Filename and Row Number, which could come in handy if we are loading a lot of CSV files. Here is code to work with the COM object:. The main drawback to using LogParser is that it requires, well…installing LogParser.

In my previous Hey, Scripting Guy! The -c argument specifies c haracter output, as opposed to SQL's native binary format; this defaults to tab-separated values, but -t , changes the field t erminator to commas. Here is a link to an article. Or if you want to do that for each select statement that you run, you can change the output direction of the results to a file.

There is a wizard with lots of options there. You should choose the source database, the destination and other options. For the destination make sure it's "Flat file", browse and choose.

It looks like you already have an acceptable solution, but if you have db mail set up you could potentially do something like this:. This will essentially export your query results into a table. Note, this table cannot exist when the query runs, as this type of query wants to create the table as part of the execution. Then use SSIS to export the results of that table to. This is really handy for using a delimiter in instances where the result set contains commas.

This procedure will generate a CSV file with the output of the query you pass as a parameter. The 2nd parameter is your CSV file name, make sure you pass the file name with a valid writable path. It is able to do it with a single command. The access database is only used to enable the access command.

It performs well, and as an added benefit not sure why it creates a schema. Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams?

Learn more. Writing select result to a csv file Ask Question. Asked 9 years, 4 months ago. Active 2 years, 3 months ago. Viewed k times. Thanks in advance. Improve this question. Sky Sky 3, 15 15 gold badges 45 45 silver badges 67 67 bronze badges.