DuckDB has a min() function just like most RDBMSs that returns the minimum value from a set of values. However, DuckDB’s implementation also allows us to return the bottom n minimum values, which is not something we see in most other RDBMSs.
This article presents some examples of DuckDB’s implementation of the min() function, so as to demonstrate its basic usage, as well as its bottom n functionality.
Most RDBMSs have a max() function and DuckDB is no exception. The max() function is a fundamental aggregate function in SQL that returns the maximum value from a set of values.
This article looks at how the max() function works in DuckDB, along with some simple examples to demonstrate.
In SQL Server, Common Table Expressions (CTEs) are often used for readability and simplifying complex queries. While CTEs are most commonly used when running a SELECT query, we can also use CTEs to perform updates with the UPDATE statement. This can be useful when we need to reference the same set of data multiple times or want to update records conditionally.
array_agg() is an aggregate function in DuckDB that allows you to combine values from multiple rows into a list. This article explores how array_agg() works, along with some examples that demonstrate its usage.
In DuckDB, the bit_xor() function returns the bitwise XOR of all bits in a given expression.
Here are some basic examples that demonstrate how the bit_xor() function works in DuckDB.
This article demonstrates how to output your DuckDB query results in LaTeX table format, which can be useful when preparing academic papers, technical documents, or any content that needs to be typeset using LaTeX.
Continue readingIn DuckDB, the bool_or() aggregate function returns true if any input value is true, otherwise it returns false.
Here are some basic examples that demonstrate how it works.
Continue readingIn DuckDB, the bit_or() function returns the bitwise OR of all bits in a given expression.
Let’s see how the bit_or() function works in DuckDB with some basic examples.
DuckDB’s CLI allows you to output query results in different formats, including NDJSON (Newline Delimited JSON).
NDJSON is similar to JSON, except that with NDJSON, each line contains its own self-contained JSON document.
This article shows you how to check your current output mode, and then change it to NDJSON.
Continue readingString concatenation is a common operation when running database queries. It simply involves joining two strings together, end to end. DuckDB provides multiple methods for combining strings, each with its own use cases and advantages.
This article explores the various ways to concatenate strings in DuckDB.
Continue reading