diff --git a/database/migrations/2025_03_22_184847_create_line_stops_table.php b/database/migrations/2025_03_22_184847_create_line_stops_table.php
index 01e5348..ccbc3cc 100644
--- a/database/migrations/2025_03_22_184847_create_line_stops_table.php
+++ b/database/migrations/2025_03_22_184847_create_line_stops_table.php
@@ -19,8 +19,8 @@ return new class extends Migration
                 block_id			BIGINT NOT NULL,
                 plant_id			BIGINT NOT NULL,
 
-                code				TEXT NOT NULL,
-                reason				TEXT NOT NULL,
+                code				CITEXT NOT NULL,
+                reason				CITEXT NOT NULL,
 
                 created_at			TIMESTAMP NOT NULL DEFAULT NOW(),
                 updated_at			TIMESTAMP NOT NULL DEFAULT NOW(),
diff --git a/database/migrations/2025_03_22_190920_create_lines_table.php b/database/migrations/2025_03_22_190920_create_lines_table.php
index 9a058ee..0b77ec6 100644
--- a/database/migrations/2025_03_22_190920_create_lines_table.php
+++ b/database/migrations/2025_03_22_190920_create_lines_table.php
@@ -18,8 +18,8 @@ return new class extends Migration
                 block_id			BIGINT NOT NULL,
                 plant_id			BIGINT NOT NULL,
 
-                name				TEXT NOT NULL,
-                type				TEXT NOT NULL,
+                name				CITEXT NOT NULL,
+                type				CITEXT NOT NULL,
 
                 created_at			TIMESTAMP NOT NULL DEFAULT NOW(),
                 updated_at			TIMESTAMP NOT NULL DEFAULT NOW(),
diff --git a/database/migrations/2025_03_23_163259_create_production_line_stops_table.php b/database/migrations/2025_03_23_163259_create_production_line_stops_table.php
index efbba6e..f94a05d 100644
--- a/database/migrations/2025_03_23_163259_create_production_line_stops_table.php
+++ b/database/migrations/2025_03_23_163259_create_production_line_stops_table.php
@@ -19,8 +19,7 @@ return new class extends Migration
                 block_id			BIGINT NOT NULL,
                 plant_id			BIGINT NOT NULL,
                 code_id		        BIGINT NOT NULL,
-
-                reason				TEXT NOT NULL,
+                reason_id           BIGINT NOT NULL,
 
                 from_datetime		TIMESTAMP NOT NULL,
                 to_datetime			TIMESTAMP NOT NULL,
@@ -35,7 +34,8 @@ return new class extends Migration
                 FOREIGN KEY (shift_id) REFERENCES shifts (id),
                 FOREIGN KEY (block_id) REFERENCES blocks (id),
                 FOREIGN KEY (plant_id) REFERENCES plants (id),
-                FOREIGN KEY (code_id) REFERENCES line_stops (id)
+                FOREIGN KEY (code_id) REFERENCES line_stops (id),
+                FOREIGN KEY (reason_id) REFERENCES line_stops (id)
             );
         SQL;
 
diff --git a/database/migrations/2025_03_23_170155_create_production_quantities_table.php b/database/migrations/2025_03_23_170155_create_production_quantities_table.php
index ff9a24b..f24aaaf 100644
--- a/database/migrations/2025_03_23_170155_create_production_quantities_table.php
+++ b/database/migrations/2025_03_23_170155_create_production_quantities_table.php
@@ -19,15 +19,16 @@ return new class extends Migration
                 shift_id			BIGINT NOT NULL,
                 block_id			BIGINT NOT NULL,
                 plant_id			BIGINT NOT NULL,
+                item_id			    BIGINT NOT NULL,
 
-                item_code			TEXT NOT NULL,
-                serial_number		TEXT NOT NULL,
+                serial_number		CITEXT NOT NULL UNIQUE,
 
                 created_at			TIMESTAMP NOT NULL DEFAULT NOW(),
                 updated_at			TIMESTAMP NOT NULL DEFAULT NOW(),
                 deleted_at			TIMESTAMP,
 
-                UNIQUE (item_code, serial_number),
+                UNIQUE (item_id, serial_number),
+                FOREIGN KEY (item_id) REFERENCES items (id),
                 FOREIGN KEY (line_id) REFERENCES lines (id),
                 FOREIGN KEY (shift_id) REFERENCES shifts (id),
                 FOREIGN KEY (block_id) REFERENCES blocks (id),