diff --git a/specification/datafactory/resource-manager/Microsoft.DataFactory/stable/2018-06-01/entityTypes/Dataset.json b/specification/datafactory/resource-manager/Microsoft.DataFactory/stable/2018-06-01/entityTypes/Dataset.json
index ca2edeaa7152..e2bd61a11d0d 100644
--- a/specification/datafactory/resource-manager/Microsoft.DataFactory/stable/2018-06-01/entityTypes/Dataset.json
+++ b/specification/datafactory/resource-manager/Microsoft.DataFactory/stable/2018-06-01/entityTypes/Dataset.json
@@ -1182,6 +1182,36 @@
         }
       }
     },
+    "TeradataTableDatasetTypeProperties": {
+      "description": "Teradata dataset properties.",
+      "properties": {
+        "database": {
+          "type": "object",
+          "description": "The database name of Teradata. Type: string (or Expression with resultType string)."
+        },
+        "table": {
+          "type": "object",
+          "description": "The table name of Teradata. Type: string (or Expression with resultType string)."
+        }
+      }
+    },
+    "TeradataTableDataset": {
+      "x-ms-discriminator-value": "TeradataTable",
+      "description": "The Teradata database dataset.",
+      "type": "object",
+      "allOf": [
+        {
+          "$ref": "#/definitions/Dataset"
+        }
+      ],
+      "properties": {
+        "typeProperties": {
+          "description": "Teradata dataset properties.",
+          "x-ms-client-flatten": true,
+          "$ref": "#/definitions/TeradataTableDatasetTypeProperties"
+        }
+      }
+    },
     "AzureMySqlTableDataset": {
       "x-ms-discriminator-value": "AzureMySqlTable",
       "description": "The Azure MySQL database dataset.",
diff --git a/specification/datafactory/resource-manager/Microsoft.DataFactory/stable/2018-06-01/entityTypes/LinkedService.json b/specification/datafactory/resource-manager/Microsoft.DataFactory/stable/2018-06-01/entityTypes/LinkedService.json
index 7c09c3e245ec..1006ecb3d5bd 100644
--- a/specification/datafactory/resource-manager/Microsoft.DataFactory/stable/2018-06-01/entityTypes/LinkedService.json
+++ b/specification/datafactory/resource-manager/Microsoft.DataFactory/stable/2018-06-01/entityTypes/LinkedService.json
@@ -937,6 +937,10 @@
     "TeradataLinkedServiceTypeProperties": {
       "description": "Teradata linked service properties.",
       "properties": {
+        "connectionString": {
+          "description": "Teradata ODBC connection string. Type: string, SecureString or AzureKeyVaultSecretReference.",
+          "type": "object"
+        },
         "server": {
           "type": "object",
           "description": "Server name for connection. Type: string (or Expression with resultType string)."
@@ -965,10 +969,7 @@
           "type": "object",
           "description": "The encrypted credential used for authentication. Credentials are encrypted using the integration runtime credential manager. Type: string (or Expression with resultType string)."
         }
-      },
-      "required": [
-        "server"
-      ]
+      }
     },
     "AzureMLLinkedService": {
       "x-ms-discriminator-value": "AzureML",
diff --git a/specification/datafactory/resource-manager/Microsoft.DataFactory/stable/2018-06-01/entityTypes/Pipeline.json b/specification/datafactory/resource-manager/Microsoft.DataFactory/stable/2018-06-01/entityTypes/Pipeline.json
index f80c024294d9..14f5a787268e 100644
--- a/specification/datafactory/resource-manager/Microsoft.DataFactory/stable/2018-06-01/entityTypes/Pipeline.json
+++ b/specification/datafactory/resource-manager/Microsoft.DataFactory/stable/2018-06-01/entityTypes/Pipeline.json
@@ -1373,6 +1373,56 @@
         }
       }
     },
+    "TeradataSource": {
+      "description": "A copy activity Teradata source.",
+      "type": "object",
+      "allOf": [
+        {
+          "$ref": "#/definitions/CopySource"
+        }
+      ],
+      "properties": {
+        "query": {
+          "type": "object",
+          "description": "Teradata query. Type: string (or Expression with resultType string)."
+        },
+        "partitionOption": {
+          "description": "The partition mechanism that will be used for teradata read in parallel.",
+          "type": "object",
+          "enum": [
+            "None",
+            "Hash",
+            "DynamicRange"
+          ],
+          "x-ms-enum": {
+            "name": "TabularPartitionOption",
+            "modelAsString": true
+          }
+        },
+        "partitionSettings": {
+          "description": "The settings that will be leveraged for teradata source partitioning.",
+          "$ref": "#/definitions/TeradataPartitionSettings"
+        }
+      }
+    },
+    "TeradataPartitionSettings": {
+      "description": "The settings that will be leveraged for teradata source partitioning.",
+      "type": "object",
+      "properties": {
+        "partitionColumnName": {
+          "type": "object",
+          "description": "The name of the column in integer type that will be used for proceeding range or hash partitioning. Type: string (or Expression with resultType string)."
+        },
+        "partitionUpperBound": {
+          "type": "object",
+          "description": "The maximum value of column specified in partitionColumnName that will be used for proceeding range partitioning. Type: string (or Expression with resultType string)."
+        },
+        "partitionLowerBound": {
+          "type": "object",
+          "description": "The minimum value of column specified in partitionColumnName that will be used for proceeding range partitioning. Type: string (or Expression with resultType string)."
+        }
+      }
+    },
     "WebSource": {
       "description": "A copy activity source for web page table.",
       "type": "object",