I am having a problem with getting information from two tables in our databases. Table A is a federated table from our accounts server which works perfectly开发者_C百科 well if queried on its own.It
Between DBLink in postgresql (http://www.postgresql.org/docs/current/static/dblink.html) and foreign data wrappers (http://www.postgresql.org/docs/9.1/static/ddl-foreign-data.html), which one (if any)
I have mysql 5.1.44: mysql> show engines; +------------+---------+ Engine| Support | +------------+---------+
I want to know what the command is that I can run in the sh开发者_开发百科ell to find out if Federation is enabled on a MySQL server or not?
目录参数设置参数获取测试类总结 参数设置 Java程序启动参数 -D是用来做什么的呢？ 官方解释如下：
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