查询Oracle 表字段

Select ROWNUM, T.*

From (Select column_name,

Case

When data_type = 'NUMBER' Then

data_type || '(' || nvl(to_char(data_precision), '*') || ',' ||

nvl(to_char(data_scale), 0) || ')'

When data_type In ('VARCHAR2', 'CHAR') Then

data_type || '(' || to_char(CHAR_LENGTH) || ')'

Else

DATA_TYPE

End As DATA_TYPE,

decode(NULLABLE, 'Y', 'N', 'N', 'Y') As Mandatory,

data_type AS data_type1,

char_length,

data_precision,

data_scale

From user_tab_columns c

Where table_name = 'CIS_1WMP_ASM_ADDR_UM_RN'

Order By c.COLUMN_ID) T

;