ORA-31054: The string operator cannot have an ancillary operator ORACLE 报错 故障修复 远程处理
文档解释
ORA-31054: The string operator cannot have an ancillary operator
Cause: An ancillary operator was used with an operator which does not does not support ancillary operators
Action: Remove the ancillary operator in the query
错误说明
ORA-31054错误代表操作符不能使用其附属操作符的错误。
ORA-31054错误是由于在SQL和PL/SQL中在字符串操作符(如like或||)后附加了其他操作符而引起的。字符串操作符不能使用其附属操作符,也就是说,它们只能在子句或表达式的末尾出现,并以空格或括号为结束。
常见案例
ORA-31054错误一般发生在使用like语句时,在表达式的末尾使用多余的操作符时。例如:
# 此语句会出现ORA-31054错误
SELECT * FROM Employees
WHERE first_name LIKE ‘John’AND;
解决方法
要解决ORA-31054错误,只需在表达式的末尾去掉多余的操作符即可。
# 正确写法
SELECT * FROM Employees
WHERE first_name LIKE ‘John’;