statement:LOOP语句中循环执行的语句序列。 END LOOP:LOOP循环结束标志,可以添加LOOP结构的标签。 1.基本的LOOP语句 实例:要求声明变量,每次循环都需要为变量增加数字1,并输出结果。当变量值大于3时,退出循环操作。 a、利用EXIT...WHEN结束循环操作。 SQL> set serveroutput on; SQL> --exit when SQL> declare ...
for循环 语法:for 变量名 in 开始值..结束值(闭区间) loop 循环体 end loop; 示例代码如下: ---输出1到10 declare beginforiin1..10loop dbms_output.put_line(i); end loop; end;
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...
这是我的循环语句: SELECT count(table_row_id) INTO V_ROWS_APPROVED FROM Source_Table; FOR i IN 1..V_ROWS_APPROVED LOOP SELECT REQUESTED_SOFT_MAPPING INTO V_SOFT FROM Source_Table WHERE ROW_ID = i; SELECT REP_ID INTO V_REP_ID FROM Source_Table WHERE ROW_ID = i; UPDATE Description_...
Adding Partitions To add a partition to the base table, use the ALTER TABLE SQL statement. When you add a partition to an indexed table, Oracle Text automatically creates the metadata for the new index partition. The new index partition has the same name as the new table partition. If you...
end loop; sql_stmt := 'select ' || trim ( both ',' from column_list ) || ' from tab'; return sql_stmt; end except_cols_macro; / As with PTFs, you can also create macros to remove columns by type. So which should you go for – PTFs or macros?
SELECT*FROMcustomers_new; 使用upsert(update or insert)功能,即SQL merge关键字 公司需要定期根据产品数据库更新数据仓库。不幸的是信息是否新旧需要在数据仓库端来确定。下面步骤介绍了sql MERGE操作: 为外部产品信息建立external table外部表(和directories目录)。
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...
SELECT ADDRESS,HASH_VALUE FROM V$SQL WHERE SQL_ID='8njk46wc5xpmv'; no rows selected Execute the statement again 1 2 SELECT * FROM V_TEST WHERE TO_DATE(DATETIME,'DDMMYYYY HH24:MI:SS')=TO_DATE('17121980 00:00:00','DDMMYYYY HH24:MI:SS'); Now the above statement is executed wit...
Add a function "oracle_execute" to execute arbitrary SQL statements 5年前 oracle_fdw.h Increase "prefetch" maximum to 10240 8个月前 oracle_gis.c Silence fallthrough compiler warnings 5年前 oracle_utils.c Increase line size for EXPLAIN output some more ...