diff --git a/README.md b/README.md
index 69553f1..f0dec97 100644
--- a/README.md
+++ b/README.md
@@ -55,11 +55,11 @@ INSERT INTO
   Test2.dbo.Tweets 
 (Lang, "Text", id, CreatedAt, Username, ScreenName) 
 VALUES 
-(@lang:string, @text:string, @id:bigint, @created_at:date, @username:string, @screenname:string)
+(@lang, @text, @id:bigint, @created_at:date, @username, @screenname)
 ```
 
 Following types are supported:
- * ``string``
+ * ``string`` (also default type if type is omitted)
  * ``number`` (will be converted to MSSQL ``int``)
  * ``bigint``
  * ``boolean`` (will be converted to MSSQL ``bit``)
diff --git a/lib/actions/insert.js b/lib/actions/insert.js
index b0768a7..42176d8 100644
--- a/lib/actions/insert.js
+++ b/lib/actions/insert.js
@@ -5,7 +5,7 @@ const cosql = require('co-mssql');
 
 let pstmt;
 
-const VARS_REGEXP = /@([\w_$][\d\w_$]*:(string|boolean|date|number|bigint|float|real|money))/g;
+const VARS_REGEXP = /@([\w_$][\d\w_$]*(:(string|boolean|date|number|bigint|float|real|money))?)/g;
 
 /**
  * This function will be called during component intialization
@@ -31,6 +31,7 @@ function init(cfg) {
             const [placeholder, type] = tuple.split(':');
             const name = placeholder.substr(1);
             switch (type) {
+                case undefined:
                 case 'string':
                     pstmt.input(name, cosql.NVarChar);
                     break;
@@ -94,6 +95,15 @@ function getMetaModel(cfg, cb) {
                 case 'bigint':
                     jsType = 'number';
                     break;
+                case 'real':
+                    jsType = 'number';
+                    break;
+                case 'float':
+                    jsType = 'number';
+                    break;
+                case 'money':
+                    jsType = 'number';
+                    break;
             }
             fields[key.substr(1)] = {
                 type: jsType
diff --git a/spec-integration/integration.spec.js b/spec-integration/integration.spec.js
index d3bd080..74286f5 100644
--- a/spec-integration/integration.spec.js
+++ b/spec-integration/integration.spec.js
@@ -34,7 +34,7 @@ describe('Integration test', () => {
     const cfg = {
       uri : process.env.MSSQL_URL,
       query: 'INSERT INTO Test2.dbo.Tweets (Lang, Retweeted, Favorited, "Text", id, CreatedAt, Username, ScreenName) '
-      + 'VALUES (@lang:string, @retweeted:boolean, @favorited:boolean, @text:string, @id:bigint, @created_at:date, @username:string, @screenname:string)'
+      + 'VALUES (@lang, @retweeted:boolean, @favorited:boolean, @text:string, @id:bigint, @created_at:date, @username, @screenname:string)'
     };
 
     before(() => {
diff --git a/spec/metadata.spec.js b/spec/metadata.spec.js
index bf810f2..5f8f184 100644
--- a/spec/metadata.spec.js
+++ b/spec/metadata.spec.js
@@ -5,7 +5,7 @@ const insert = require('../lib/actions/insert');
 describe('Metadata test', () => {
     const cfg = {
         query: 'INSERT INTO Test2.dbo.Tweets (Lang, Retweeted, Favorited, "Text", id, CreatedAt, Username, ScreenName) '
-        + 'VALUES (@lang:string, @retweeted:boolean, @favorited:boolean, '
+        + 'VALUES (@lang:string, @retweeted:float, @money:money, @favorited:boolean, '
         + '@text:string, @id:bigint, @created_at:date, @username:string, @screenname:string)'
     };
 
@@ -28,8 +28,11 @@ describe('Metadata test', () => {
                         lang: {
                             type: 'string'
                         },
+                        money: {
+                            type: 'number'
+                        },
                         retweeted: {
-                            type: 'string'
+                            type: 'number'
                         },
                         screenname: {
                             type: 'string'
@@ -89,5 +92,52 @@ describe('Metadata test', () => {
         });
     });
 
+    it('should assume default metadata as stirng', (done) => {
+        insert.getMetaModel({
+            query: 'INSERT INTO Test2.dbo.Tweets '
+            + '(Lang, Retweeted, Favorited, "Text", id, CreatedAt, Username, ScreenName) '
+            + 'VALUES (@lang, @retweeted:float, @money:money, @favorited:boolean, '
+            + '@text, @id:bigint, @created_at:date, @username, @screenname)'
+        }, (err, result) => {
+            expect(err).to.be.null;
+            expect(result).to.deep.equal({
+                in: {
+                    properties: {
+                        created_at: {
+                            type: 'string'
+                        },
+                        favorited: {
+                            type: 'string'
+                        },
+                        id: {
+                            type: 'number'
+                        },
+                        lang: {
+                            type: 'string'
+                        },
+                        money: {
+                            type: 'number'
+                        },
+                        retweeted: {
+                            type: 'number'
+                        },
+                        screenname: {
+                            type: 'string'
+                        },
+                        text: {
+                            type: 'string'
+                        },
+                        username: {
+                            type: 'string'
+                        }
+                    },
+                    type: 'object'
+                },
+                out: {}
+            }
+            );
+            done();
+        });
+    });
 
 });