diff --git a/README.md b/README.md
index e71a42c..1d3ecd0 100644
--- a/README.md
+++ b/README.md
@@ -39,14 +39,9 @@
 ###### Example:- EXCHANGE_EXTRACT_SQL.json
 ```
 {
-    "customers"    :   "SELECT * FROM customers;",
-    "employees"    :   "SELECT * FROM employees;",
-    "offices"      :   "SELECT * FROM offices;",
-    "orderdetails" :   "SELECT * FROM orderdetails;",
-    "orders"       :   "SELECT * FROM orders;",
-    "payments"     :   "SELECT * FROM payments;",
-    "productlines" :   "SELECT * FROM productlines;",
-    "products"     :   "SELECT * FROM products;"
+    "customers"    :   "SELECT *, now() AS '_source_loaded_at' FROM customers;",
+    "employees"    :   "SELECT *, now() AS '_source_loaded_at' FROM employees;",
+    "offices"      :   "SELECT *, now() AS '_source_loaded_at' FROM offices;"
 }
 ```
 ### Project Tree
diff --git a/config/EXCHANGE_EXTRACT_SQL.json b/config/EXCHANGE_EXTRACT_SQL.json
index 5a62e81..e6c2973 100644
--- a/config/EXCHANGE_EXTRACT_SQL.json
+++ b/config/EXCHANGE_EXTRACT_SQL.json
@@ -1,4 +1,19 @@
 {
-    "contacts"    :   "SELECT * FROM contacts;",
-    "transactions"    :   "SELECT * FROM transactions;"
+    "bookings"                  :   "SELECT *, now() AS '_source_loaded_at' FROM bookings;",
+    "companies"                 :   "SELECT *, now() AS '_source_loaded_at' FROM companies;",
+    "contacts"                  :   "SELECT id, company_id, country_id, deleted_at, created_at, updated_at, now() AS '_source_loaded_at' FROM contacts;",
+    "countries"                 :   "SELECT *, now() AS '_source_loaded_at' FROM countries;",    
+    "currencies"                :   "SELECT *, now() AS '_source_loaded_at' FROM currencies;",   
+    "currency_rates"            :   "SELECT *, now() AS '_source_loaded_at' FROM currency_rates;",  
+    "employees"                 :   "SELECT *, now() AS '_source_loaded_at' FROM employees;",
+    "groups"                    :   "SELECT *, now() AS '_source_loaded_at' FROM groups;",  
+    "group_transactions"        :   "SELECT *, now() AS '_source_loaded_at' FROM group_transactions;",   
+    "segments"                  :   "SELECT *, now() AS '_source_loaded_at' FROM segments;",
+    "segment_companies"         :   "SELECT *, now() AS '_source_loaded_at' FROM segment_companies;",
+    "service_types"             :   "SELECT *, now() AS '_source_loaded_at' FROM service_types;",
+    "transactions"              :   "SELECT *, now() AS '_source_loaded_at' FROM transactions;",
+    "transaction_detail"        :   "SELECT *, now() AS '_source_loaded_at' FROM transaction_detail;",
+    "users"                     :   "SELECT id, name, email, type, status, deleted_at, created_at, updated_at, now() AS '_source_loaded_at' FROM users;",
+    "user_email_verifications"  :   "SELECT id,email now() AS '_source_loaded_at' FROM users;",
+    "wallets"                   :   "SELECT *, now() AS '_source_loaded_at' FROM wallets;"
 }
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