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如下例子:
select substr('LL$$BOAT$$he很帅', 1, instr('LL$$BOAT$$he很帅', '$$', 1, 1) - 1), substr('LL$$BOAT$$he很帅', instr('LL$$BOAT$$he很帅', '$$', 1, 1) + 2, instr('LL$$BOAT$$he很帅', '$$', 1, 2) - 2 - instr('LL$$BOAT$$he很帅', '$$', 1, 1)), substr('LL$$BOAT$$he很帅', instr('LL$$BOAT$$he很帅', '$$', 1, 2) + 2) from dual t;
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原文地址:http://blog.csdn.net/helloboat/article/details/44177579