diff --git a/framework/CHANGELOG.md b/framework/CHANGELOG.md
index fffdfe0673..1e3de45842 100644
--- a/framework/CHANGELOG.md
+++ b/framework/CHANGELOG.md
@@ -16,6 +16,7 @@ Yii Framework 2 Change Log
 - Bug #20482: Fix deprecation of `ReflectionMethod::setAccessible()` in PHP `8.5` (terabytesoftw)
 - Enh #20480: Add PHPStan/Psalm annotations for `ServiceLocator::get` (max-s-lab)
 - Bug #20447: Fix behavior for `yii\web\Controller::bindActionParams` around `mixed` type (chriscpty)
+- Bug #20479: Fix issue with MSSQL related to char and nchar (craiglondon)
 - Bug #20492: Fix deprecation of `finfo_close()` in PHP `8.5` by conditionally closing the resource (terabytesoftw)
 - Bug #20495: Fix behavior when resetting sequence in `QueryBuilder` for `MSSQL` (achretien)
 - Bug #20489: Replace deprecated `strftime` with `date` in `YiiRequirementChecker` (max-s-lab)
diff --git a/framework/db/QueryBuilder.php b/framework/db/QueryBuilder.php
index 9d243abe12..45b67b1bb3 100644
--- a/framework/db/QueryBuilder.php
+++ b/framework/db/QueryBuilder.php
@@ -1034,13 +1034,13 @@ class QueryBuilder extends \yii\base\BaseObject
      * Creates a SQL statement for resetting the sequence value of a table's primary key.
      * The sequence will be reset such that the primary key of the next new row inserted
      * will have the specified value or the maximum existing value +1.
-     * @param string $table the name of the table whose primary key sequence will be reset
+     * @param string $tableName the name of the table whose primary key sequence will be reset
      * @param array|string|null $value the value for the primary key of the next new row inserted. If this is not set,
      * the next new row's primary key will have the maximum existing value +1.
      * @return string the SQL statement for resetting sequence
      * @throws NotSupportedException if this is not supported by the underlying DBMS
      */
-    public function resetSequence($table, $value = null)
+    public function resetSequence($tableName, $value = null)
     {
         throw new NotSupportedException($this->db->getDriverName() . ' does not support resetting sequence.');
     }
diff --git a/framework/db/mssql/QueryBuilder.php b/framework/db/mssql/QueryBuilder.php
index d08ca44503..e14d3653c4 100644
--- a/framework/db/mssql/QueryBuilder.php
+++ b/framework/db/mssql/QueryBuilder.php
@@ -504,9 +504,12 @@ class QueryBuilder extends \yii\db\QueryBuilder
                 }
 
                 $dbType = $column->dbType;
-                if (in_array($dbType, ['char', 'varchar', 'nchar', 'nvarchar', 'binary', 'varbinary'])) {
+                if (in_array($dbType, ['varchar', 'nvarchar', 'binary', 'varbinary'])) {
                     $dbType .= '(MAX)';
+                } elseif (in_array($dbType, ['char',  'nchar'])) {
+                    $dbType .= "($column->size)";
                 }
+
                 if ($column->dbType === Schema::TYPE_TIMESTAMP) {
                     $dbType = $column->allowNull ? 'varbinary(8)' : 'binary(8)';
                 }