If you’re getting an error that reads something like “Binder Error: Cannot mix values of type …etc” when using the COALESCE() function in DuckDB, it’s probably because you’re using arguments with incompatible types.
To fix this issue, try using CAST() or TRY_CAST() to ensure that all arguments are compatible. Alternatively, make sure the arguments to COALESCE() are of the same type (or at least, compatible types).
DuckDB is a fast and reliable analytical database that provides us with a wide range of aggregate functions that can help us perform analytical queries. One of these aggregate functions is the ARBITRARY() function, which returns the first value from the group.
In this post, we’ll take a look at how the ARBITRARY() function works in DuckDB
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.
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.
In 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.
In 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.