在开发过程中，经常会碰到一些业务场景，需要以完全模糊匹配的方式查找数据，就会想到用 like %xxx% 或者 like %xxx 的方式去实现，而且即使列上有选择率很高的索引，也不会被使用。在MySQL中可以通过ICP特性，全文索引，基于生成列索引解决这类问题，下面就从 ...

You can reference items indirectly with the NAME_IN and COPY built-in subprograms. The NAME_IN function returns the contents of an indicated variable or item. Use the NAME_IN function to get the value ...

structures such as latches and pointers into other areas of the SGA. The variable area of the SGA is made up of the large pool and the shared pool.