How do I test a flat file?
How do I test a flat file?
The Testing I have done is:
- Structure validation of the file.
- Check for duplicate records.
- Select one row from the target file and for that record alone, run the source query and then compare the Source output and the target record in the flat file manually comparing each field one at a time.
- Check for data truncation.
What is considered a flat file?
A flat file, also known as a text database, is a type of database that stores data in a plain text format. Flat files typically text files that have all word processing and structure markup removed. A flat file features a table with a single record per line.
Is flat file and CSV same?
The difference between a flat file and a CSV file is that a CSV file uses a delimiter to separate data fields (in most instances this is a comma, although enclosing characters can be used, such as double quotes) and delimited files only use a delimiter to structure data.
Is text a flat file?
Linear stores of NoSQL data, JSON formatted data, primitive spreadsheets (perhaps comma-separated or tab-delimited), and text files can all be seen as flat-file databases, because they lack integrated indexes, built-in references between data elements, or complex data types.
What is ETL Testing?
ETL — Extract/Transform/Load — is a process that extracts data from source systems, transforms the information into a consistent data type, then loads the data into a single depository. ETL testing refers to the process of validating, verifying, and qualifying data while preventing duplicate records and data loss.
How do you write test cases for ETL Testing?
Few examples of test cases.
- The source and target table structure should match with the ETL mapping sheet.
- Data type and data length at source and target should be the same.
- The Data field type format should match on both source and target tables.
- Column names should map with the ETL sheets on both source and target.
What file formats exist with flat file databases?
Some common flat file formats would include Electronic Data Interchange (EDI) platform standard formats such as X12 and EDIFACT, eXtensible Markup Language or XML, and CSV or comma-delimited files often representing spreadsheets.
Is XML considered a flat file?
The term flat file refers to any file stored on a local file system, as opposed to a more complex set of files, such as those in a structured database. You can use the adapter for flat files to read and write any type of file. The two common data formats are XML or comma-separated values (CSV) records.
Is Excel a flat file database?
A Flat File Database – A simple table, consisting of categories (or fields) in columnar format and records entered in rows. “Databases” created in spreadsheet applications (like Microsoft Excel) are flat file databases.
Is Microsoft Access a flat file database?
A flat file database is a database that stores data in a plain text file. Fortunately, most database programs such as Microsoft Access and FileMaker Pro can import flat file databases and use them in a larger relational database.
Why SQL is used in testing?
The ability to recognize the different types of databases. The ability to connect to the database using different SQL connection clients. Understanding of the relationship between database tables, keys, and indices. Ability to write a simple select or SQL statement along with more complex join queries.
What is Dwh testing?
Data warehouse testing is the process of building and executing comprehensive test cases to ensure that data in a warehouse has integrity and is reliable, accurate, and consistent with the organization’s data framework.
