The first row stores comma-separated column headers, and the following rows store comma-separated values. It might not be as clear as a table, but you can definitely see the pattern. Let’s look at a sample CSV file called countries.csv that we’ll later import into the MySQL database. For example, the value 12.34 goes without double quotation marks, but the value 12,34 must be written as "12,34" to prevent it from being considered as two values ( 12 and 34) instead of one value ( 12,34). It is treated as a special case: the value is wrapped in double quotation marks. Now you may wonder what happens if a value contains a comma character. Typically, the first row of a CSV file stores column headers and the following rows store data. Usually, the column values are separated by a comma (hence the name, comma-separated values), but you can use other separators, such as a semi-colon or a tab. Each row of a CSV file represents a row of a table. A CSV file is a text file that stores tabular data.
About CSV FilesĬSV stands for “Comma-Separated Values”. So, let’s get started with our review of the CSV file format. It’s not necessary for either course, but having a MySQL database on your computer will give you something to practice on later.
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You can also follow this article to learn how to install a MySQL database on a Windows PC. The How to INSERT, UPDATE, or DELETE Data in MySQL course includes 70 exercises where you insert, update, and delete table records.īoth the courses end with a quiz so you can verify how much you’ve learned.The SQL Basics in MySQL course includes 126 exercises that cover selecting, querying, aggregating, and grouping data as well as JOINs and.If you haven’t worked with a MySQL database before, make sure to check out our interactive courses:
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