diff --git a/specification/datafactory/resource-manager/Microsoft.DataFactory/2017-09-01-preview/entityTypes/Dataset.json b/specification/datafactory/resource-manager/Microsoft.DataFactory/2017-09-01-preview/entityTypes/Dataset.json
index 511f0be06b35..aabc71fd8fe0 100644
--- a/specification/datafactory/resource-manager/Microsoft.DataFactory/2017-09-01-preview/entityTypes/Dataset.json
+++ b/specification/datafactory/resource-manager/Microsoft.DataFactory/2017-09-01-preview/entityTypes/Dataset.json
@@ -802,6 +802,35 @@
         "tableName"
       ]
     },
+    "AzureMySqlTableDataset": {
+      "x-ms-discriminator-value": "AzureMySqlTable",
+      "description": "The Azure MySQL database dataset.",
+      "type": "object",
+      "allOf": [
+        {
+          "$ref": "#/definitions/Dataset"
+        }
+      ],
+      "properties": {
+        "typeProperties": {
+          "description": "Azure MySQL database dataset properties.",
+          "x-ms-client-flatten": true,
+          "$ref": "#/definitions/AzureMySqlTableDatasetTypeProperties"
+        }
+      },
+      "required": [
+        "typeProperties"
+      ]
+    },
+    "AzureMySqlTableDatasetTypeProperties": {
+      "description": "Azure MySQL database dataset properties.",
+      "properties": {
+        "tableName": {
+          "type": "object",
+          "description": "The Azure MySQL database table name. Type: string (or Expression with resultType string)."
+        }
+      }
+    },
     "RelationalTableDataset": {
       "x-ms-discriminator-value": "RelationalTable",
       "description": "The relational table dataset.",
diff --git a/specification/datafactory/resource-manager/Microsoft.DataFactory/2017-09-01-preview/entityTypes/LinkedService.json b/specification/datafactory/resource-manager/Microsoft.DataFactory/2017-09-01-preview/entityTypes/LinkedService.json
index da3ae3742e3b..db23957aa9e6 100644
--- a/specification/datafactory/resource-manager/Microsoft.DataFactory/2017-09-01-preview/entityTypes/LinkedService.json
+++ b/specification/datafactory/resource-manager/Microsoft.DataFactory/2017-09-01-preview/entityTypes/LinkedService.json
@@ -511,6 +511,42 @@
         "connectionString"
       ]
     },
+    "AzureMySqlLinkedService": {
+      "x-ms-discriminator-value": "AzureMySql",
+      "description": "Azure MySQL database linked service.",
+      "type": "object",
+      "allOf": [
+        {
+          "$ref": "#/definitions/LinkedService"
+        }
+      ],
+      "properties": {
+        "typeProperties": {
+          "description": "Azure MySQL database linked service properties.",
+          "x-ms-client-flatten": true,
+          "$ref": "#/definitions/AzureMySqlLinkedServiceTypeProperties"
+        }
+      },
+      "required": [
+        "typeProperties"
+      ]
+    },
+    "AzureMySqlLinkedServiceTypeProperties": {
+      "description": "Azure MySQL database linked service properties.",
+      "properties": {
+        "connectionString": {
+          "description": "The connection string.",
+          "$ref": "../datafactory.json#/definitions/SecureString"
+        },
+        "encryptedCredential": {
+          "type": "object",
+          "description": "The encrypted credential used for authentication. Credentials are encrypted using the integration runtime credential manager. Type: string (or Expression with resultType string)."
+        }
+      },
+      "required": [
+        "connectionString"
+      ]
+    },
     "MySqlLinkedService": {
       "x-ms-discriminator-value": "MySql",
       "description": "Linked service for MySQL data source.",
@@ -2033,4 +2069,4 @@
       ]
     }
   }
-}
+}
\ No newline at end of file
diff --git a/specification/datafactory/resource-manager/Microsoft.DataFactory/2017-09-01-preview/entityTypes/Pipeline.json b/specification/datafactory/resource-manager/Microsoft.DataFactory/2017-09-01-preview/entityTypes/Pipeline.json
index fef30043c6bc..77f2b4a72c09 100644
--- a/specification/datafactory/resource-manager/Microsoft.DataFactory/2017-09-01-preview/entityTypes/Pipeline.json
+++ b/specification/datafactory/resource-manager/Microsoft.DataFactory/2017-09-01-preview/entityTypes/Pipeline.json
@@ -409,7 +409,7 @@
       }
     },
     "HdfsSource": {
-      "description": "A copy activity source for HDFS source.",
+      "description": "A copy activity HDFS source.",
       "type": "object",
       "allOf": [
         {
@@ -449,6 +449,21 @@
         "tempScriptPath"
       ]
     },
+    "AzureMySqlSource": {
+      "description": "A copy activity Azure MySQL source.",
+      "type": "object",
+      "allOf": [
+        {
+          "$ref": "#/definitions/CopySource"
+        }
+      ],
+      "properties": {
+        "query": {
+          "type": "object",
+          "description": "Database query. Type: string (or Expression with resultType string)."
+        }
+      }
+    },
     "OracleSource": {
       "description": "A copy activity Oracle source.",
       "type": "object",