本文介绍了如何使用CONCAT函数来连接两个字符串。通过一个具体的SQL示例展示了如何将不同的字符串部分组合成一个完整的电话号码。
CONCAT 函数
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连接两个字符串;
SQL> select concat('010-','88888888')||'转23' 高乾竞电话 from dual
高乾竞电话
----------------
010-88888888转23
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