Postgresql 中文操作指南 36. ECPG — Embedded SQL in C 36.14. Embedded SQL Commands SET CONNECTION Postgresql 中文操作指南 SET CONNECTION SET CONNECTION — 选择一个数据库连接 SET CONNECTION — select a database connection Synopsis SET CONNECTION [ TO | = ] connection_name Description SET CONNECTION 设置“当前”数据库连接,所有命令都会使用该连接,除非被覆盖。 SET CONNECTION sets the “current” database connection, which is the one that all commands use unless overridden. Parameters connection_name # A database connection name established by the CONNECT command. CURRENT # Set the connection to the current connection (thus, nothing happens). Examples EXEC SQL SET CONNECTION TO con2; EXEC SQL SET CONNECTION = con1; Compatibility SET CONNECTION 在 SQL 标准中进行了规定。 SET CONNECTION is specified in the SQL standard. See Also CONNECT , DISCONNECT CONNECT, DISCONNECT