在 Oracle SQL 中创建触发器时出现问题（在线）

Question

我在 Oracle SQL（在线）中创建触发器时遇到问题。请找出代码的问题。

这些是我的代码。

客户table代码：

CREATE TABLE customers( 
    cusid INT PRIMARY KEY, 
    cusnm VARCHAR(10), 
    cusadd VARCHAR(10) 
)

审核table代码：

CREATE TABLE audits( 
    table_name VARCHAR2(255), 
    transaction_name VARCHAR2(10), 
    by_user VARCHAR2(30), 
    transaction_date DATE 
)

触发代码：

CREATE OR REPLACE TRIGGER customers_audit_trg
AFTER
UPDATE OR DELETE
ON customers
FOR EACH ROW

DECLARE
    tx VARCHAR2(10);

BEGIN
    --determine the transaction type
    tx := CASE
        WHEN UPDATING THEN 'UPDATE'
        WHEN DELETING THEN 'DELETE'
    END;
    
    --insert a row into the audit table
    INSERT INTO audits(table_name, transaction_name, by_user, transaction_date)
    VALUES('customers', tx, USER, SYSDATE)
END;
/

错误：

Errors: TRIGGER CUSTOMERS_AUDIT_TRG
Line/Col: 2/8 PLS-00103: Encountered the symbol "=" when expecting one of the following:

   constant exception <an identifier>
   <a double-quoted delimited-identifier> table columns long
   double ref char time timestamp interval date binary national
   character nchar

Answer 1

这只是一个缺少分号的问题。

    --insert a row into the audit table
    INSERT INTO audits(table_name, transaction_name, by_user, transaction_date)
    VALUES('customers', tx, USER, SYSDATE);

在 Oracle SQL 中创建触发器时出现问题（在线）

Issue happening when creating a trigger in Oracle SQL (Online)

sql

oracle

triggers