Index: ssts-web/src/main/webapp/dataUpdater/sqls/5.0.18_5.0.19_oracle.sql
===================================================================
diff -u -r37701 -r37703
--- ssts-web/src/main/webapp/dataUpdater/sqls/5.0.18_5.0.19_oracle.sql	(.../5.0.18_5.0.19_oracle.sql)	(revision 37701)
+++ ssts-web/src/main/webapp/dataUpdater/sqls/5.0.18_5.0.19_oracle.sql	(.../5.0.18_5.0.19_oracle.sql)	(revision 37703)
@@ -1,10 +1,14 @@
+DECLARE  
+    v_column_exists NUMBER;  
 BEGIN  
-    EXECUTE IMMEDIATE 'ALTER TABLE IDCardInstance DROP COLUMN lastClassifiedItemIds';  
-EXCEPTION  
-    WHEN OTHERS THEN  
-        IF SQLCODE = -2289 THEN  
-            DBMS_OUTPUT.PUT_LINE('Column lastClassifiedItemIds does not exist in table IDCardInstance. No action taken.');  
-        ELSE  
-            RAISE; 
-        END IF;  
+    -- 检查字段 lastClassifiedItemIds 是否存在于 IDCardInstance 表中  
+    SELECT COUNT(*)  
+    INTO v_column_exists  
+    FROM USER_TAB_COLUMNS -- 或者 ALL_TAB_COLUMNS, DBA_TAB_COLUMNS，取决于你的权限和需要  
+    WHERE TABLE_NAME = 'IDCardInstance'  
+    AND COLUMN_NAME = 'lastClassifiedItemIds';  
+    -- 如果字段存在，则删除它  
+    IF v_column_exists > 0 THEN  
+        EXECUTE IMMEDIATE 'ALTER TABLE IDCardInstance DROP COLUMN lastClassifiedItemIds';  
+    END IF; 
 END;
\ No newline at end of file