oracle数据库登入账号oracle截取字符串

oracle截取字符串

 

将 C3411.907w15 截取点号之前的字符串 C3411    SUBSTR ('C3411.907w15',  0,  INSTR ('C3411.907w15, '.', 1, 1) – 1)  

 

SELECT SUBSTR ('C3411.907w15', 0, INSTR ('C3411.907w15, '.', 1, 1) – 1)

  wwworacle账号.2cto.com  

  FROM DUAL

 

将 C3411.907w15 截取点号之后 的字符串 907w15   SUBSTR ('C3411.907w15', INSTR ('C3411.907w15', '.', 1, 1)+1)

 

SELECT SUBSTR ('C3411.907w15', INSTR ('C3411.907w15', '.', 1, 1)+1)

  FROM DUAL

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