1、NVL函数 当修饰的字段的内容为NULL时,NVL的运算结果为指定的值,可以使用的数据类型有日期、字符和数字。函数的参数只能有2个,如果有多个参数值,那么可以用COALESCE,例如“NVL(SEX,2)=2”和“(SEX=2 OR SEX IS NULL)”的意思是一样的。 SELECT D.EMPNO,D.COMM, NVL(COMM,200) FROM SCOTT.EMP D; 2...
if(orgid_var is null) 这个条件 推断假设为空 视该记录无效,不參与推断(业务要求)。 假设不加这个条件 (且没有 select count(1) into count_var from tssa_dsg.eosorg_t_organization b, (select a.* from tssa_dsg.bndict_t_dictionary a where a.BUSINTYPEID = 'WH_CH_ORAPROPERTY' and a.status...
l_fmts fmtArray :=fmtArray('dd-mon-yyyy','dd-month-yyyy','dd/mm/yyyy','dd/mm/yyyy hh24:mi:ss'); l_return date;beginforiin1.. l_fmts.countloopbeginl_return :=to_date( p_string, l_fmts(i) ); exceptionwhenothersthennull;end;EXITwhenl_returnisnotnull;endloop;if( l_returnis...
decode() 条件取值,类同java的switch case when then else end 条件取值,类同java的if-else if-else 组函数 组函数又被称作聚合函数,用于对多行数据进行操作,并返回一个单一的结果 avg()求平均值,只能对数字类型进行处理,不处理空字段 sum()求和,只能对数字类型进行处理 count()计数,对任何类型生效,不处理空...
index_log where owner=aIndexOwner and index_name=aIndexName;IFvCnt=0THENinsert into index_logvalues(aIndexOwner,aIndexName,sysdate,aLeafBlocks,round(vLeafEstimate,2),vIndxLyt);ELSEvCnt:=0;selectcount(*)into vCnt from index_hist where owner=aIndexOwner and index_name=aIndexName;IFvCnt>=v...
--从orgidCursor变量取值到oper_name_varif(orgid_varisnull)then--orgid_var是可能为空的 表里面t.orgid为空null;elseselectcount(1)intocount_varfromtssa_dsg.eosorg_t_organization b,(selecta.*fromtssa_dsg.bndict_t_dictionary awherea.BUSINTYPEID='WH_CH_ORAPROPERTY'anda.status='0')awhereb....
EXIT WHEN row_id_table.COUNT = 0;FORALL i IN 1 .. row_id_table.COUNTDELETE FROM TB_ARTSIAN_ATTR WHERE ROWID = row_id_table(i);COMMIT;--dbms_lock.sleep(5000);END LOOP;CLOSE c1;--V_SQL := 'ALTER TABLE TB_ARTSIAN_ATTR logging';--EXECUTE IMMEDIATE V_SQL;END PROC_CLEAN_BIGDATA...
请注意,对应于主机参数的 IPv6 风格地址。要获知 IPv6 地址,运行 ifconfig 命令即可。 oracle@oradba1 /# /sbin/ifconfig -a eth0 Link encap:Ethernet HWaddr 00:19:21:BB:9A:A5 inet addr:10.14.104.253 Bcast:10.14.107.255 Mask:255.255.252.0inet6 addr: fe80::219:21ff:febb:9aa5/64 Scope:Li...
select count(1) into num from user_tables where table_name = upper('SH_PLACARD_INFO') ; if num > 0 then execute immediate 'drop table SH_PLACARD_INFO' ; end if; end; 三、Oracle 批量插入数据 insert all into 用法 将多行插入到一个或多个表中。 在这种情况下,就可以使用OracleINSERT ALL...
2-4 Oracle Fusion Middleware User's Guide for Oracle Business Activity Monitoring Personalizing Oracle BAM Web Applications Caution: If you do not log out while an Oracle BAM Web application is open, such as Oracle BAM Active Studio, but close the start page (by clicking the Close button), ...