2、WHILE...LOOP结构 WHILE...LOOP结构和基本的LOOP语句不同,它本身可以结束LOOP循环。WHILE关键词后面需要有布尔表达式,当WHILE后面的布尔表达式为TRUE时,则循环体重的语句序列被执行1次,然后会重新判断WHILE后面的表达式是否为TRUE,只有当WHILE后的布尔表达式为FALSE时,才结束整个LOOP循环。 该语句结构的相关语法如下:...
1)while循环 2)exit循环(常用) 3)for循环 while循环 语法:while 条件 loop 循环体 end loop; 示例代码如下: ---输出1到10 declare i number(2) :=1; beginwhilei <11loop dbms_output.put_line(i); i := i +1; end loop; end; exit 循环 语法:loop exit when 条件 循环体 loop end; 示例代...
WHILE condition LOOP sequence_of_statements END LOOP; 1. 2. 3. 示例 DECLARE v_count NUMBER(5):=11; v_num NUMBER(10):=200; BEGIN while v_count < 20 LOOP INSERT INTO T_TEST(T_TEST."id",T_TEST."num") VALUES(v_count,v_num); v_count:= v_count + 3; v_num:= v_num + 10...
continue close current delete fetch lock insert open rollback savepoint set sql execute commit forall merge pipe purge 06550. 00000 - "line %s, column %s:\n%s" *Cause: Usually a PL/SQL compilation error. *Action: 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 修改以上脚本为: SETS...
Oracle PL/SQL Update语句永远循环-504网关超时 我正在尝试根据另一个表的信息更新表: Source_Table(表1)列:TABLE_ROW_ID(基于插入时的trigger-sequence)REP_IDSOFT_ASSIGNMENT 说明(表2)列:REP_IDNEW_SOFT_ASSIGNMENT 这是我的循环语句: SELECT count(table_row_id) INTO V_ROWS_APPROVED FROM Source_Table;...
也支持在 PL/SQL 中使用。 SET SERVEROUTPUT ON; DECLARE vt_typ_varchar typ_varchar_array := typ_varchar_array(); BEGIN SELECT fn_split('a,b,c', ',') INTO vt_typ_varchar FROM dual; FOR i IN 1..vt_typ_varchar.count LOOP dbms_output.put_line(vt_typ_varchar(i)); END LOOP; END...
java.sql.SQLException错误! ORA-00904: --invalid column name 无效列名 ORA-00942: --table or view does not exist 表或者视图不存在 ORA-01400: --cannot insert NULL into () 不能将空值插入 ORA-00936: --缺少表达式 ORA-00933 ...
12.5.1 NullPointerException Is Logged When an IOException Occurs During Server Startup 12.5.2 Directory For a Non-Existent Server Name Is Created... 12.5.3 Abnormal Behavior in Terminal Window After Entering WebLogic Password ... 12.5.4 Creating and Updating Domains Takes Too Long... 12.5.5 ...
当一个块被标记为软损坏时,除非使用dbms_repair.SKIP_CORRUPT_BLOCKS或事件10231/10233,否则SQL语句在读取该块时会失败并出现错误RA-1578。 RMAN 备份不会因软损坏块而失败。RMAN 在备份期间不设置 MAXCORRUPT 子句将忽略“软损坏”块。 介质恢复(前滚)忽略软损坏块。一般来说,介质恢复会忽略物理损坏块和软损坏块...
test_case_scn.sql: ---cut --- col curscn format 99999999999999999999999 select dbms_flashback.get_system_change_number curscn from dual; begin for i in 1 .. 1000 loop insert into rs.dropme values(i, i); end loop; end; / select dbms_flash...