diff --git a/packages/server/src/integrations/base/IntegrationBase.ts b/packages/server/src/integrations/base/IntegrationBase.ts
index ce92a10fce..a48713997a 100644
--- a/packages/server/src/integrations/base/IntegrationBase.ts
+++ b/packages/server/src/integrations/base/IntegrationBase.ts
@@ -1,6 +1,6 @@
 export interface IntegrationBase {
-  create?(query: any): Promise<[any]>
-  read?(query: any): Promise<[any]>
-  update?(query: any): Promise<[any]>
-  delete?(query: any): Promise<[any]>
+  create?(query: any): Promise<any[]>
+  read?(query: any): Promise<any[]>
+  update?(query: any): Promise<any[]>
+  delete?(query: any): Promise<any[]>
 }
diff --git a/packages/server/src/integrations/oracle.ts b/packages/server/src/integrations/oracle.ts
index 336feac91f..532a1befd1 100644
--- a/packages/server/src/integrations/oracle.ts
+++ b/packages/server/src/integrations/oracle.ts
@@ -9,7 +9,7 @@ import {
   finaliseExternalTables,
   getSqlQuery,
   buildExternalTableId,
-  convertType,
+  convertSqlType,
 } from "./utils"
 import oracledb, {
   ExecuteOptions,
@@ -82,15 +82,6 @@ module OracleModule {
 
   const UNSUPPORTED_TYPES = ["BLOB", "CLOB", "NCLOB"]
 
-  const TYPE_MAP = {
-    long: FieldTypes.LONGFORM,
-    number: FieldTypes.NUMBER,
-    binary_float: FieldTypes.NUMBER,
-    binary_double: FieldTypes.NUMBER,
-    timestamp: FieldTypes.DATETIME,
-    date: FieldTypes.DATETIME,
-  }
-
   /**
    * Raw query response
    */
@@ -292,7 +283,7 @@ module OracleModule {
         return FieldTypes.BOOLEAN
       }
 
-      return convertType(column.type, TYPE_MAP)
+      return convertSqlType(column.type)
     }
 
     /**
@@ -393,26 +384,26 @@ module OracleModule {
       return oracledb.getConnection(attributes)
     }
 
-    async create(query: SqlQuery | string) {
-      const response = await this.internalQuery(getSqlQuery(query))
+    async create(query: SqlQuery | string): Promise<any[]> {
+      const response = await this.internalQuery<any>(getSqlQuery(query))
       return response.rows && response.rows.length
         ? response.rows
         : [{ created: true }]
     }
 
-    async read(query: SqlQuery | string) {
-      const response = await this.internalQuery(getSqlQuery(query))
-      return response.rows
+    async read(query: SqlQuery | string): Promise<any[]> {
+      const response = await this.internalQuery<any>(getSqlQuery(query))
+      return response.rows ? response.rows : []
     }
 
-    async update(query: SqlQuery | string) {
+    async update(query: SqlQuery | string): Promise<any[]>  {
       const response = await this.internalQuery(getSqlQuery(query))
       return response.rows && response.rows.length
         ? response.rows
         : [{ updated: true }]
     }
 
-    async delete(query: SqlQuery | string) {
+    async delete(query: SqlQuery | string): Promise<any[]>  {
       const response = await this.internalQuery(getSqlQuery(query))
       return response.rows && response.rows.length
         ? response.rows
diff --git a/packages/server/src/integrations/utils.ts b/packages/server/src/integrations/utils.ts
index 4ddc99e22e..594fee1b65 100644
--- a/packages/server/src/integrations/utils.ts
+++ b/packages/server/src/integrations/utils.ts
@@ -32,6 +32,10 @@ const SQL_TYPE_MAP = {
   fixed: FieldTypes.NUMBER,
   datetime: FieldTypes.DATETIME,
   tinyint: FieldTypes.BOOLEAN,
+  long: FieldTypes.LONGFORM,
+  number: FieldTypes.NUMBER,
+  binary_float: FieldTypes.NUMBER,
+  binary_double: FieldTypes.NUMBER,
 }
 
 export enum SqlClients {