Merge c87011f into 70b95ef

commcare_export/writers.py

@@ -272,6 +272,10 @@ def __exit__(self, exc_type, exc_val, exc_tb):
     def is_postgres(self):
         return 'postgres' in self.db_url
 
+    @property
+    def is_oracle(self):
+        return 'oracle' in self.db_url
+
     @property
     def is_mysql(self):
         return 'mysql' in self.db_url
@@ -291,6 +295,8 @@ def max_column_length(self):
         if self.is_mssql:
             # https://docs.microsoft.com/en-us/sql/relational-databases/databases/database-identifiers?view=sql-server-2017
             return 128
+        if self.is_oracle:
+            return 128
         raise Exception("Unknown database dialect: {}".format(self.db_url))
 
     @property
@@ -351,6 +357,8 @@ def best_type_for(self, val):
                     return sqlalchemy.UnicodeText(collation=self.collation)
             elif self.is_mssql:
                 return sqlalchemy.NVARCHAR(collation=self.collation)
+            if self.is_oracle:
+                return sqlalchemy.UnicodeText(collation=self.collation)
             else:
                 raise Exception("Unknown database dialect: {}".format(self.db_url))
         else: