diff --git a/src/lib/data/export-metadata/export-sql-script.ts b/src/lib/data/export-metadata/export-sql-script.ts
index 1f300c4a..6eeeb805 100644
--- a/src/lib/data/export-metadata/export-sql-script.ts
+++ b/src/lib/data/export-metadata/export-sql-script.ts
@@ -82,6 +82,8 @@ export const exportBaseSQL = (diagram: Diagram): string => {
             // Add size for character types
             if (field.characterMaximumLength) {
                 sqlScript += `(${field.characterMaximumLength})`;
+            } else if (field.type.name.toLowerCase().includes('varchar')) {
+                sqlScript += `(500)`;
             }
 
             // Add precision and scale for numeric types
@@ -96,6 +98,11 @@ export const exportBaseSQL = (diagram: Diagram): string => {
                 sqlScript += ' NOT NULL';
             }
 
+            // Handle UNIQUE value
+            if (!field.primaryKey && field.unique) {
+                sqlScript += ` UNIQUE`;
+            }
+
             // Handle DEFAULT value
             if (field.default) {
                 // Temp remove default user-define value when it have it