How to Use momentJS with Node.js and MySQL for Custom Queries

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The Problem

As developers, we often attempt to construct SQL queries dynamically based on various parameters, including dates. Let's say you want to count records from a database table where a specific date column falls within a certain range:

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Upon executing your query, you may encounter an error similar to this:

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This error suggests that the SQL parser is confused by how dates are formatted or utilized in the query.

Understanding the Cause

In the example above, you are using momentJS to format dates. While momentJS does an excellent job of formatting dates, you must ensure that MySQL recognizes them correctly. Here’s what you might have tried:

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When passed directly into the SQL syntax, the lack of quotation marks around these date strings causes the parser to fail, resulting in the error mentioned earlier.

The Solution

1. Properly Format Your SQL Query

To fix the SQL syntax error, you need to ensure that your formatted date strings are enclosed within single quotes. This allows MySQL to correctly parse the values as date strings.

Here is the corrected SQL query syntax with properly quoted date formats:

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2. Testing the Query

After making the above adjustments, run your query again to see if the error persists. If done correctly, the date filtering should work as intended, allowing your SQL query to return accurate results without raising an error.

Conclusion

For further queries or troubleshooting, feel free to reach out or check relevant documentation. Happy coding!