Db类增加批处理执行sql操作方法

library/think/db/Driver.php

@@ -441,6 +441,33 @@ abstract class Driver
         return true;
     }
 
+    /**
+     * 批处理执行SQL语句
+     * 批处理的指令都认为是execute操作
+     * @access public
+     * @param array $sql  SQL批处理指令
+     * @return boolean
+     */
+    public function batchQuery($sql = [])
+    {
+        if (!is_array($sql)) {
+            return false;
+        }
+        // 自动启动事务支持
+        $this->startTrans();
+        try {
+            foreach ($sql as $_sql) {
+                $result = $this->execute($_sql);
+            }
+            // 提交事务
+            $this->commit();
+        } catch (\PDOException $e) {
+            $this->rollback();
+            return false;
+        }
+        return true;
+    }
+
     /**
      * 将SQL语句中的__TABLE_NAME__字符串替换成带前缀的表名（小写）
      * @access protected

library/think/db/driver/Oracle.php

@@ -211,6 +211,6 @@ class Oracle extends Driver
      */
     protected function getExplain($sql)
     {
-
+        return [];
     }
 }

library/think/db/driver/Pgsql.php

@@ -129,6 +129,6 @@ class Pgsql extends Driver
      */
     protected function getExplain($sql)
     {
-
+        return [];
     }
 }

library/think/db/driver/Sqlite.php

@@ -110,6 +110,6 @@ class Sqlite extends Driver
      */
     protected function getExplain($sql)
     {
-
+        return [];
     }
 }

library/think/db/driver/Sqlsrv.php

@@ -195,6 +195,6 @@ class Sqlsrv extends Driver
      */
     protected function getExplain($sql)
     {
-
+        return [];
     }
 }