diff --git a/installer/data/mysql/it-IT/necessari/parameters.sql b/installer/data/mysql/it-IT/necessari/parameters.sql
index 806bba7c85..6fc7c51833 100644
--- a/installer/data/mysql/it-IT/necessari/parameters.sql
+++ b/installer/data/mysql/it-IT/necessari/parameters.sql
@@ -1,8 +1,4 @@
-SET FOREIGN_KEY_CHECKS=0;
-
 INSERT INTO `currency` (currency, rate, symbol, active) VALUES
 ('USD', 1.4, '$', 0),
 ('GBP', .8, '£', 0),
 ('EUR', 1, '€', 1);
-
-SET FOREIGN_KEY_CHECKS=1;
diff --git a/installer/data/mysql/ru-RU/optional/sample_currency.sql b/installer/data/mysql/ru-RU/optional/sample_currency.sql
index 87af40157f..6f2eb87491 100644
--- a/installer/data/mysql/ru-RU/optional/sample_currency.sql
+++ b/installer/data/mysql/ru-RU/optional/sample_currency.sql
@@ -1,5 +1,3 @@
-TRUNCATE currency;
-
 INSERT INTO `currency` (`currency`, `symbol`, `timestamp`, `rate`, active) VALUES ('CAD','$','2009-01-23 08:15:20',6.157690, 0);
 
 INSERT INTO `currency` (`currency`, `symbol`, `timestamp`, `rate`, active) VALUES ('EUR','€','2009-01-23 08:15:20',9.852920, 0);
diff --git a/installer/data/mysql/uk-UA/optional/sample_currency.sql b/installer/data/mysql/uk-UA/optional/sample_currency.sql
index 87af40157f..6f2eb87491 100644
--- a/installer/data/mysql/uk-UA/optional/sample_currency.sql
+++ b/installer/data/mysql/uk-UA/optional/sample_currency.sql
@@ -1,5 +1,3 @@
-TRUNCATE currency;
-
 INSERT INTO `currency` (`currency`, `symbol`, `timestamp`, `rate`, active) VALUES ('CAD','$','2009-01-23 08:15:20',6.157690, 0);
 
 INSERT INTO `currency` (`currency`, `symbol`, `timestamp`, `rate`, active) VALUES ('EUR','€','2009-01-23 08:15:20',9.852920, 0);