错误：ORA-00907：缺少右括号

Question

我试图创建一个简单的表但是它给了我一个错误说：

Error starting at line : 1 in command -
CREATE TABLE dj_abonent
(
nr_klienti int NOT NULL,
emer_klienti varchar2(10),
sasia_cel int
CONSTRAINT dj_klientID PRIMARY KEY(nr_klienti)
)
Error at Command Line : 6 Column : 35
Error report -
SQL Error: ORA-00907: missing right parenthesis
00907. 00000 -  "missing right parenthesis"
*Cause:    
*Action:
Error starting at line : 1 in command -
CREATE TABLE dj_abonent
(
nr_klienti int NOT NULL,
emer_klienti varchar2(10),
sasia_cel int,
CONSTRAINT dj_klientID PRIMARY KEY(nr_klienti)
)
Error at Command Line : 1 Column : 14
Error report -
SQL Error: ORA-00955: name is already used by an existing object
00955. 00000 -  "name is already used by an existing object"
*Cause:    
*Action:

Answer 1

您缺少逗号：

CREATE TABLE dj_abonent
(
nr_klienti int NOT NULL,
emer_klienti varchar2(10),
sasia_cel int, -- this one right here
CONSTRAINT dj_klientID PRIMARY KEY(nr_klienti)
)

Answer 2

您遇到第二个错误，因为您使用dj_klientID作为两个约束的名称。它们必须是独一无二的。

尝试重命名两个约束中的一个，并修复第二个查询。