diff --git a/src/jvmMain/kotlin/ru/landgrafhomyak/db/jdbc_kotlin_extensions/extensions.kt b/src/jvmMain/kotlin/ru/landgrafhomyak/db/jdbc_kotlin_extensions/extensions.kt
index adf9129..de2d39a 100644
--- a/src/jvmMain/kotlin/ru/landgrafhomyak/db/jdbc_kotlin_extensions/extensions.kt
+++ b/src/jvmMain/kotlin/ru/landgrafhomyak/db/jdbc_kotlin_extensions/extensions.kt
@@ -52,11 +52,16 @@ public inline fun <R> Connection.transaction(t: (Connection) -> R): R {
 }
 
 
+public fun Connection.executeStatement(@Language("SQL") sql: String) {
+	this.prepareStatement(sql) { ps -> ps.execute() }
+}
+
+
 public inline fun <R> Connection.prepareStatement(@Language("SQL") sql: String, action: (PreparedStatement) -> R): R {
 	contract {
 		callsInPlace(action, InvocationKind.EXACTLY_ONCE)
 	}
-	this.prepareStatement(sql/*.trim(' ', '\n', '\t')*/).use { ps -> return action(ps) }
+	this.prepareStatement(sql).use { ps -> return action(ps) }
 }
 
 public inline fun <R, C : MutableCollection<R>> ResultSet.mapTo(to: C, transform: (rs: ResultSet) -> R): C {
@@ -80,4 +85,29 @@ public inline fun <R> PreparedStatement.executeQuery(action: (ResultSet) -> R):
 		callsInPlace(action, InvocationKind.EXACTLY_ONCE)
 	}
 	return this.executeQuery().use(action)
-}
\ No newline at end of file
+}
+
+
+public fun PreparedStatement.setUByte(parameterIndex: Int, value: UByte): Unit =
+	this.setByte(parameterIndex, value.toByte())
+
+public fun PreparedStatement.setUShort(parameterIndex: Int, value: UShort): Unit =
+	this.setShort(parameterIndex, value.toShort())
+
+public fun PreparedStatement.setUInt(parameterIndex: Int, value: UInt): Unit =
+	this.setInt(parameterIndex, value.toInt())
+
+public fun PreparedStatement.setULong(parameterIndex: Int, value: ULong): Unit =
+	this.setLong(parameterIndex, value.toLong())
+
+public fun ResultSet.getUByte(columnIndex: Int): UByte =
+	this.getByte(columnIndex).toUByte()
+
+public fun ResultSet.getUShort(columnIndex: Int): UShort =
+	this.getShort(columnIndex).toUShort()
+
+public fun ResultSet.getUInt(columnIndex: Int): UInt =
+	this.getInt(columnIndex).toUInt()
+
+public fun ResultSet.getULong(columnIndex: Int): ULong =
+	this.getLong(columnIndex).toULong()
\ No newline at end of file