SDO Relational Data Access Service

• 简介
• 安装/配置
  • 需求
  • 安装
  • 运行时配置
  • 资源类型
• 预定义常量
• 范例
  • Creating, retrieving, updating and deleting data
  • Specifying the metadata
  • One-table examples
  • Two-table examples
  • Three-table example
• Limitations
• SDO-DAS-Relational 函数
  • SDO_DAS_Relational::applyChanges — Applies the changes made to a data graph back to the database.
  • SDO_DAS_Relational::__construct — Creates an instance of a Relational Data Access Service
  • SDO_DAS_Relational::createRootDataObject — Returns the special root object in an otherwise empty data graph. Used when creating a data graph from scratch.
  • SDO_DAS_Relational::executePreparedQuery — Executes an SQL query passed as a prepared statement, with a list of values to substitute for placeholders, and return the results as a normalised data graph.
  • SDO_DAS_Relational::executeQuery — Executes a given SQL query against a relational database and returns the results as a normalised data graph.