OceanBase Database determines the order of implicit data type conversion based on the data type precedence. This topic describes data type precedence for conversion.
OceanBase Database data types take the following precedence (from high to low) during conversion:
Datetime and interval data types
BINARY_DOUBLEdata typeBINARY_FLOATdata typeNUMBERdata typeCharacter data types
All other built-in data types