diff --git a/LICENSE b/LICENSE
index f18f60f..a86e8ad 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2020 WebFiori Framework
+Copyright (c) 2020-present WebFiori Framework
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/WebFiori/Database/Attributes/AttributeTableBuilder.php b/WebFiori/Database/Attributes/AttributeTableBuilder.php
index b80b5b1..fc8920b 100644
--- a/WebFiori/Database/Attributes/AttributeTableBuilder.php
+++ b/WebFiori/Database/Attributes/AttributeTableBuilder.php
@@ -13,7 +13,7 @@ public static function build(string $entityClass, string $dbType = 'mysql'): Tab
 
         $tableAttr = $reflection->getAttributes(Table::class)[0] ?? null;
         if (!$tableAttr) {
-            throw new \RuntimeException("Class $entityClass must have #[Table] attribute");
+            throw new InvalidAttributeException("Class $entityClass must have #[Table] attribute");
         }
 
         $tableConfig = $tableAttr->newInstance();
@@ -25,7 +25,7 @@ public static function build(string $entityClass, string $dbType = 'mysql'): Tab
         if (!empty($classColumnAttrs)) {
             foreach ($classColumnAttrs as $columnAttr) {
                 $columnConfig = $columnAttr->newInstance();
-                $columnKey = $columnConfig->name ?? throw new \RuntimeException("Column name is required for class-level attributes");
+                $columnKey = $columnConfig->name ?? throw new InvalidAttributeException("Column name is required for class-level attributes");
                 $columns[$columnKey] = self::columnConfigToArray($columnConfig);
             }
 
diff --git a/WebFiori/Database/Attributes/ForeignKey.php b/WebFiori/Database/Attributes/ForeignKey.php
index aaafa40..4a83fbf 100644
--- a/WebFiori/Database/Attributes/ForeignKey.php
+++ b/WebFiori/Database/Attributes/ForeignKey.php
@@ -2,7 +2,6 @@
 namespace WebFiori\Database\Attributes;
 
 use Attribute;
-use InvalidArgumentException;
 
 #[Attribute(Attribute::TARGET_PROPERTY | Attribute::TARGET_CLASS | Attribute::IS_REPEATABLE)]
 class ForeignKey {
@@ -15,7 +14,7 @@ public function __construct(
         public string $onDelete = 'set null'
     ) {
         if ($column !== null && !empty($columns)) {
-            throw new InvalidArgumentException(
+            throw new InvalidAttributeException(
                 "ForeignKey: Use either 'column' or 'columns', not both"
             );
         }
diff --git a/WebFiori/Database/Attributes/InvalidAttributeException.php b/WebFiori/Database/Attributes/InvalidAttributeException.php
new file mode 100644
index 0000000..f93052b
--- /dev/null
+++ b/WebFiori/Database/Attributes/InvalidAttributeException.php
@@ -0,0 +1,8 @@
+<?php
+namespace WebFiori\Database\Attributes;
+
+/**
+ * Exception thrown when PHP 8 attributes are invalid or misconfigured.
+ */
+class InvalidAttributeException extends \Exception {
+}
diff --git a/WebFiori/Database/Entity/EntityGenerator.php b/WebFiori/Database/Entity/EntityGenerator.php
index a82353f..ece65f1 100644
--- a/WebFiori/Database/Entity/EntityGenerator.php
+++ b/WebFiori/Database/Entity/EntityGenerator.php
@@ -143,52 +143,30 @@ private function buildGetters(): string {
      * @return string The default value as PHP code
      */
     private function getDefault(Column $col): string {
-        if ($col->isAutoInc()) {
+        if ($col->isAutoInc() || $col->isNull()) {
             return ' = null';
         }
 
-        if ($col->isNull()) {
-            return ' = null';
-        }
-
-        $default = $col->getDefault();
-
-        if ($default !== null) {
-            $phpType = $col->getPHPType();
-
-            if ($phpType === 'string') {
-                return " = '".addslashes($default)."'";
-            }
-
-            if ($phpType === 'int' || $phpType === 'float') {
-                return " = {$default}";
-            }
-
-            if ($phpType === 'bool') {
-                return $default ? ' = true' : ' = false';
-            }
-        }
-
-        // Required field with no default
         $phpType = $col->getPHPType();
+        $default = $col->getDefault();
 
-        if ($phpType === 'string') {
-            return " = ''";
-        }
-
-        if ($phpType === 'int') {
-            return ' = 0';
-        }
-
-        if ($phpType === 'float') {
-            return ' = 0.0';
-        }
+        $typeDefaults = [
+            'string' => " = ''",
+            'int' => ' = 0',
+            'float' => ' = 0.0',
+            'bool' => ' = false'
+        ];
 
-        if ($phpType === 'bool') {
-            return ' = false';
+        if ($default !== null) {
+            return match ($phpType) {
+                'string' => " = '" . addslashes($default) . "'",
+                'int', 'float' => " = {$default}",
+                'bool' => $default ? ' = true' : ' = false',
+                default => ''
+            };
         }
 
-        return '';
+        return $typeDefaults[$phpType] ?? '';
     }
 
     /**
diff --git a/WebFiori/Database/Entity/RecordMapper.php b/WebFiori/Database/Entity/RecordMapper.php
index ad61e6a..c435455 100644
--- a/WebFiori/Database/Entity/RecordMapper.php
+++ b/WebFiori/Database/Entity/RecordMapper.php
@@ -128,11 +128,8 @@ public function map(array $record) {
         foreach ($this->getSettersMap() as $method => $colsNames) {
             if (is_callable([$instance, $method])) {
                 foreach ($colsNames as $colName) {
-                    try {
-                        if (isset($record[$colName])) {
-                            $instance->$method($record[$colName]);
-                        }
-                    } catch (\Throwable $ex) {
+                    if (isset($record[$colName])) {
+                        $instance->$method($record[$colName]);
                     }
                 }
             }
diff --git a/WebFiori/Database/Query/InsertBuilder.php b/WebFiori/Database/Query/InsertBuilder.php
index 6fb4db6..c18f601 100644
--- a/WebFiori/Database/Query/InsertBuilder.php
+++ b/WebFiori/Database/Query/InsertBuilder.php
@@ -206,17 +206,16 @@ private function build() {
     }
     private function buildColsArr() {
         $colsArr = [];
-        $colsStr = '';
-        $table = $this->getTable();
+        $tableObj = $this->getTable();
 
         foreach ($this->cols as $colKey) {
-            $colObj = $table->getColByKey($colKey);
+            $colObj = $tableObj->getColByKey($colKey);
 
             if ($colObj === null) {
-                $table->addColumns([
+                $tableObj->addColumns([
                     $colKey => []
                 ]);
-                $colObj = $table->getColByKey($colKey);
+                $colObj = $tableObj->getColByKey($colKey);
             }
             $colObj->setWithTablePrefix(false);
             $colsArr[] = $colObj->getName();
@@ -266,7 +265,7 @@ private function initValsArr() {
         $colsAndVals = $this->data;
 
         if (isset($colsAndVals['cols']) && isset($colsAndVals['values'])) {
-            $cols = $colsAndVals['cols'];
+            $colsArr = $colsAndVals['cols'];
             $tempVals = $colsAndVals['values'];
             $temp = [];
             $topIndex = 0;
@@ -275,14 +274,14 @@ private function initValsArr() {
                 $index = 0;
                 $temp[] = [];
 
-                foreach ($cols as $colKey) {
+                foreach ($colsArr as $colKey) {
                     $temp[$topIndex][$colKey] = $valsArr[$index];
                     $index++;
                 }
                 $topIndex++;
             }
             $this->vals = $temp;
-            $this->cols = $cols;
+            $this->cols = $colsArr;
         } else {
             $this->cols = array_keys($colsAndVals);
             $this->vals = [$colsAndVals];
diff --git a/WebFiori/Database/Repository/AbstractRepository.php b/WebFiori/Database/Repository/AbstractRepository.php
index eb9cbfc..c49cd24 100644
--- a/WebFiori/Database/Repository/AbstractRepository.php
+++ b/WebFiori/Database/Repository/AbstractRepository.php
@@ -61,7 +61,7 @@ public function deleteAll(): void {
     public function deleteById(mixed $id = null): void {
         $id = $id ?? $this->getEntityId();
         if ($id === null) {
-            throw new \InvalidArgumentException('Cannot delete: no ID provided');
+            throw new RepositoryException('Cannot delete: no ID provided');
         }
         $this->db->table($this->getTableName())
             ->delete()
@@ -94,7 +94,7 @@ public function findAll(): array {
     public function findById(mixed $id = null): ?object {
         $id = $id ?? $this->getEntityId();
         if ($id === null) {
-            throw new \InvalidArgumentException('Cannot find: no ID provided');
+            throw new RepositoryException('Cannot find: no ID provided');
         }
         $result = $this->db->table($this->getTableName())
             ->select()
@@ -225,7 +225,7 @@ public function paginateByCursor(
      */
     public function save(?object $entity = null): void {
         if ($entity === null && !property_exists($this, $this->getIdField())) {
-            throw new \InvalidArgumentException('Cannot save: no entity provided');
+            throw new RepositoryException('Cannot save: no entity provided');
         }
         $entity = $entity ?? $this;
         $data = $this->toArray($entity);
diff --git a/WebFiori/Database/Repository/RepositoryException.php b/WebFiori/Database/Repository/RepositoryException.php
new file mode 100644
index 0000000..8a5d1d5
--- /dev/null
+++ b/WebFiori/Database/Repository/RepositoryException.php
@@ -0,0 +1,8 @@
+<?php
+namespace WebFiori\Database\Repository;
+
+/**
+ * Exception thrown for repository operation errors.
+ */
+class RepositoryException extends \Exception {
+}
diff --git a/WebFiori/Database/Schema/DatabaseChangeGenerator.php b/WebFiori/Database/Schema/DatabaseChangeGenerator.php
index 6f0abf0..cd8fa07 100644
--- a/WebFiori/Database/Schema/DatabaseChangeGenerator.php
+++ b/WebFiori/Database/Schema/DatabaseChangeGenerator.php
@@ -11,6 +11,8 @@
  */
 namespace WebFiori\Database\Schema;
 
+use WebFiori\Database\DatabaseException;
+
 /**
  * Generator for creating migration and seeder class files.
  * 
@@ -235,7 +237,7 @@ private function formatStringArray(array $items): string {
 
     private function writeFile(string $name, string $content): string {
         if (empty($this->path)) {
-            throw new \RuntimeException('Path not set. Call setPath() first.');
+            throw new DatabaseException('Path not set. Call setPath() first.');
         }
 
         if (!is_dir($this->path)) {
diff --git a/WebFiori/Database/Schema/SchemaException.php b/WebFiori/Database/Schema/SchemaException.php
new file mode 100644
index 0000000..c8740d2
--- /dev/null
+++ b/WebFiori/Database/Schema/SchemaException.php
@@ -0,0 +1,8 @@
+<?php
+namespace WebFiori\Database\Schema;
+
+/**
+ * Exception thrown for schema-related errors (migrations, seeders, schema operations).
+ */
+class SchemaException extends \Exception {
+}
diff --git a/WebFiori/Database/Schema/SchemaRunner.php b/WebFiori/Database/Schema/SchemaRunner.php
index c7f0509..a00bc51 100644
--- a/WebFiori/Database/Schema/SchemaRunner.php
+++ b/WebFiori/Database/Schema/SchemaRunner.php
@@ -425,11 +425,11 @@ public function register(DatabaseChange|string $change): bool {
 
             if (is_string($change)) {
                 if (!class_exists($change)) {
-                    throw new Exception("Class does not exist: {$change}");
+                    throw new SchemaException("Class does not exist: {$change}");
                 }
 
                 if (!is_subclass_of($change, DatabaseChange::class)) {
-                    throw new Exception("Class is not a subclass of DatabaseChange: {$change}");
+                    throw new SchemaException("Class is not a subclass of DatabaseChange: {$change}");
                 }
 
                 $change = new $change();
diff --git a/sonar-project.properties b/sonar-project.properties
index 281a044..ec19bba 100644
--- a/sonar-project.properties
+++ b/sonar-project.properties
@@ -1,12 +1,12 @@
-sonar.projectKey=WebFiori_database
-sonar.organization=webfiori
-
-sonar.projectName=database
-sonar.projectVersion=1.0
-
-sonar.exclusions=tests/**
-sonar.coverage.exclusions=tests/**
-
-sonar.php.coverage.reportPaths=clover.xml
-# Encoding of the source code. Default is default system encoding
-sonar.sourceEncoding=UTF-8
+sonar.projectKey=WebFiori_database
+sonar.organization=webfiori
+
+sonar.projectName=database
+sonar.projectVersion=1.0
+
+sonar.exclusions=tests/**,examples/**
+sonar.coverage.exclusions=tests/**,examples/**
+
+sonar.php.coverage.reportPaths=clover.xml
+# Encoding of the source code. Default is default system encoding
+sonar.sourceEncoding=UTF-8
diff --git a/tests/WebFiori/Tests/Database/Attributes/ForeignKeyAttributeTest.php b/tests/WebFiori/Tests/Database/Attributes/ForeignKeyAttributeTest.php
index f24d2bc..014d29f 100644
--- a/tests/WebFiori/Tests/Database/Attributes/ForeignKeyAttributeTest.php
+++ b/tests/WebFiori/Tests/Database/Attributes/ForeignKeyAttributeTest.php
@@ -2,11 +2,11 @@
 
 namespace WebFiori\Tests\Database\Attributes;
 
-use InvalidArgumentException;
 use PHPUnit\Framework\TestCase;
 use WebFiori\Database\Attributes\AttributeTableBuilder;
 use WebFiori\Database\Attributes\Column;
 use WebFiori\Database\Attributes\ForeignKey;
+use WebFiori\Database\Attributes\InvalidAttributeException;
 use WebFiori\Database\Attributes\Table;
 use WebFiori\Database\DataType;
 
@@ -63,7 +63,7 @@ public function testMultipleColumnsFK() {
     }
 
     public function testBothColumnAndColumnsThrowsException() {
-        $this->expectException(InvalidArgumentException::class);
+        $this->expectException(InvalidAttributeException::class);
         $this->expectExceptionMessage("ForeignKey: Use either 'column' or 'columns', not both");
         
         new ForeignKey(table: 'users', column: 'id', columns: ['local_id' => 'id']);
diff --git a/tests/WebFiori/Tests/Database/Repository/AbstractRepositoryTest.php b/tests/WebFiori/Tests/Database/Repository/AbstractRepositoryTest.php
index 91dd92b..e9eeabe 100644
--- a/tests/WebFiori/Tests/Database/Repository/AbstractRepositoryTest.php
+++ b/tests/WebFiori/Tests/Database/Repository/AbstractRepositoryTest.php
@@ -8,6 +8,7 @@
 use WebFiori\Database\ColOption;
 use WebFiori\Database\DataType;
 use WebFiori\Database\Repository\AbstractRepository;
+use WebFiori\Database\Repository\RepositoryException;
 
 class TestEntity {
     public ?int $id = null;
@@ -176,14 +177,14 @@ public function testSaveAllMixed() {
     }
 
     public function testFindByIdWithNullThrowsException() {
-        $this->expectException(\InvalidArgumentException::class);
+        $this->expectException(RepositoryException::class);
         $this->expectExceptionMessage('Cannot find: no ID provided');
 
         self::$repo->findById(null);
     }
 
     public function testDeleteByIdWithNullThrowsException() {
-        $this->expectException(\InvalidArgumentException::class);
+        $this->expectException(RepositoryException::class);
         $this->expectExceptionMessage('Cannot delete: no ID provided');
 
         self::$repo->deleteById(null);
@@ -211,7 +212,7 @@ public function testDeleteByIdWithValidId() {
     }
 
     public function testSaveWithNullOnPureRepoThrowsException() {
-        $this->expectException(\InvalidArgumentException::class);
+        $this->expectException(RepositoryException::class);
         $this->expectExceptionMessage('Cannot save: no entity provided');
 
         self::$repo->save();
@@ -234,7 +235,7 @@ public function testReloadWithEntity() {
     }
 
     public function testReloadWithNullOnPureRepoThrowsException() {
-        $this->expectException(\InvalidArgumentException::class);
+        $this->expectException(RepositoryException::class);
         $this->expectExceptionMessage('Cannot find: no ID provided');
 
         self::$repo->reload();
diff --git a/tests/WebFiori/Tests/Database/Schema/DatabaseChangeGeneratorTest.php b/tests/WebFiori/Tests/Database/Schema/DatabaseChangeGeneratorTest.php
index 38d2576..a50d9fa 100644
--- a/tests/WebFiori/Tests/Database/Schema/DatabaseChangeGeneratorTest.php
+++ b/tests/WebFiori/Tests/Database/Schema/DatabaseChangeGeneratorTest.php
@@ -174,7 +174,7 @@ public function testCreateWithoutNamespace() {
     public function testCreateWithoutPathThrows() {
         $generator = new DatabaseChangeGenerator();
 
-        $this->expectException(\RuntimeException::class);
+        $this->expectException(\WebFiori\Database\DatabaseException::class);
         $this->expectExceptionMessage('Path not set');
 
         $generator->createMigration('CreateUsersTable');