使用哪些函数可以执行显式数据类型转换?()
A: ROUN
B: TRUN
C: ADD_MONTHS
D: LENGT
E: SUBST
F: LPA
G: TRIM
H: TO_CHA
I: TO_DAT
J: TO_NUMBER
K: NV
L: NVL2、NULLIF
A: ROUN
B: TRUN
C: ADD_MONTHS
D: LENGT
E: SUBST
F: LPA
G: TRIM
H: TO_CHA
I: TO_DAT
J: TO_NUMBER
K: NV
L: NVL2、NULLIF
举一反三
- 常见的转换函数是?() A: nvl B: nvl2 C: nullif D: coalesce
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