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extend/app_alipay/lotusphp_runtime/DB/Adapter/SqlAdapter/DbSqlAdapter.php

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+<?php
+interface LtDbSqlAdapter
+{
+	/**
+	 * Return SQL statements
+	 */
+	public function setCharset($charset);
+	public function setSchema($schema);
+
+	public function showSchemas($database);
+	public function showTables($schema);
+	public function showFields($table);
+
+	public function beginTransaction();
+	public function commit();
+	public function rollBack();
+
+	public function limit($limit, $offset);
+
+	/**
+	 * Retrive recordset
+	 */
+	public function getSchemas($queryResult);
+	public function getTables($queryResult);
+	public function getFields($queryResult);
+
+	/**
+	 * Parse SQL
+	 */
+	public function detectQueryType($sql);
+}