The following illustration shows all explicit and implicit data type conversions that are allowed for [!INCLUDE ssNoVersion] system-supplied data types. These include xml, bigint, and sql_variant.

It’s surprisingly easy to stop query folding happening in Power Query by changing the data type of a column. This is mentioned in the docs here, and it’s something several people have blogged about ...

In SQL Server, data types define the kind of data that can be stored in a column. For example, integers are stored using the INT data type, while strings may use VARCHAR or NVARCHAR .

This post adds one more useful detail: how to preserve the original data types of the columns in your query when using this technique with SQL Server-related sources. Consider the DimDate table in the ...

SQL data types. To learn more about SQL data types, read “SQL basics: String data types,” which covers general data-type usage and describes using the various string data types, and “SQL ...

SQL databases have constraints on data types and consistency. NoSQL does away with them for the sake of speed, flexibility, and scale.

When you convert between an application variable and a [!INCLUDEssNoVersion] result set column, return code, parameter, or parameter marker, the supported data type conversions are defined by the ...