SUBSTRING is a standard SQL function used to extract a portion of a string. It is defined in ISO/IEC 9075 (commonly known as ISO SQL) and is supported by many database products. SUBSTR is an SQL ...

[!INCLUDE [sql-asdb-asdbmi-asa-pdw-fabricse-fabricdw-fabricsqldb](../../includes/applies-to-version/sql-asdb-asdbmi-asa-pdw-fabricse-fabricdw-fabricsqldb.md)] Returns ...

#' implementing a new backend. They are typically used within [sql_translator()] #' to define how R string functions should be translated to SQL. #' * `sql_substr()` creates a SQL substring function ...