这将导致ORA-00904错误,因为empoyee_id是一个拼写错误的列名。正确的SQL语句应该是: sql SELECT employee_id, first_name, last_name FROM employees; 通过遵循上述步骤和建议,您可以有效地解决和预防ORA-00904错误。如果您在解决此错误时遇到困难,请务必检查您的SQL语句并遵循Oracle的命名和语法规则。
2. 使用双引号引用标识符:当你在SQL语句中使用了带有特殊字符或关键字的标识符时,你需要使用双引号将其引起来。例如,如果你的列名是"first name",你可以这样引用它:"first name"。 3. 检查表或列是否存在:如果你在SQL语句中使用了一个不存在的表或列名,那么也会导致ORA-00904错误的发生。你可以使用DESCRIBE命...
我正在尝试使用order-by语句对多个联合选择进行分组。(不是GROUP BY组,而是可视化分组) 请考虑以下内容: SELECT 'First Query' QRY, Field1, Field2 FROM Tabl1 WHERE Field1 <= 5 UNION ALL SELECT 'Second Query', Field1, Field2 FROM Tabl1 WHERE Field1 >5 ORDER BY QRY, Field1; 当我试图在oracl...
SOLUTION You needtosetallthe required Environment Variablesfirstasperyour needlikeORACLE_SID, ORACLE_BASE, ORACLE_HOME, TNS_ADMIN, PATHwithpropervalues(OR) Simply workbygoingtothe bin directoryofyour required ORACLE_HOMESETORACLE_HOME=Your_Oracle_Home CD ORACLE_HOME\bin Even if yousetallthe environ...
SELECT Employee.EMPLID as EmpID, Employee.FIRST_NAME AS Name, Team.DEPARTMENT_CODE AS TeamID, Team.Department_Name AS teamname FROM PS_TBL_EMPLOYEE_DETAILS Employee INNER JOIN PS_TBL_DEPARTMENT_DETAILS Team ON Team.DEPARTMENT_CODE = Employee.DEPTID 这给出了以下错误: INNER JOIN PS_TBL_DEPARTM...
FIRSTNAME, INTO FirstName,LastName我得到以下错误: PL/SQL语句忽略的标识符FIRSTNAME必须声明ORA-00904无效标识符 浏览5提问于2010-12-02得票数 3 回答已采纳 2回答 选择除法上的SQL计数(*) 、 我有这个SQL select,我不知道如何使用“总计”来进行除法。select count(*) as totalwhere id = 15/total; ...
To resolve this error, first check to make sure the column name being referenced exists. If it does not exist, you must create one before attempting to execute an SQL statement with the column. If the column name exists, be sure to check that the column name is in the proper syntax. ...
want to try running catalog.sql and catproc.sql first. If this does not resolve the issue try issuing the following statement: ALTER PACKAGE DBMS_EXPORT_EXTENSION COMPILE BODY; If you receive errors during the statement, type: "SHOW ERRORS" ...
ORA-00904 : “现在” : 无效标识符 相关内容 a因为失业他买不起这幢事万元的房子 Because is unemployed he not to be able to buy this matter ten thousand Yuan houses[translate] aLove, just say it out loud, because you never know, tomorrow, and accidents, which will come first! Love, just...
我的查询出了什么问题?select MID(First_Name,1,3) As 'Short Name' from employee; 该错误显示ORA-00904: "MID": invalid identifier 浏览1提问于2015-07-23得票数 1 1回答 ORA-00904:"GET_JAVA_PROPERTY":无效标识符- 11gR2 、、 在Oracle DB 11.2.0.4中,linux 6.7单个实例SQL> show userSQL> ...