Oracle connection strings
Oracle ODBC connection strings
Open connection to Oracle database using ODBC
"Driver= {Microsoft ODBCforOracle};Server=Your_Oracle_Server.world;Uid=Your_Username;Pwd=Your_Password;"
Oracle OLE DB & OleDbConnection (.NET framework) connection strings
Open connection to Oracle database with standard security:
1. "Provider=MSDAORA;Data Source= Your_Oracle_Database;UserId=Your_Username;Password=Your_Password;"
2. "Provider= OraOLEDB.Oracle;Your_Oracle_Database;UserId=Your_Username;Password=Your_Password;"
Open trusted connection to Oracle database
"Provider= OraOLEDB.Oracle;DataSource=Your_Oracle_Database;OSAuthent=1;"
相关文档：
SQL中的单记录函数
1.ASCII
返回与指定的字符对应的十进制数;
SQL> select ascii('A') A,ascii('a') a,ascii('0') zero,ascii(' ') space from dual;
A A ZERO SPACE
--------- --------- -- ......
SQL> with tt as
2 (
3 select 'haha' string from dual union
4 select '123' from dual union
5 select 'haha12' from dual union
6 select 'haha[]' from dual union
7 select '12@@' from dual union
8 select ......
Oracle异常分为3种:
(1)预定义异常:no_data_found等,是Oracle系统定义的异常.
declare
s_test varchar2
begin
select id into s_test from test; --此时test表无数据
exception
when no_data_found then
raise_application_error(-20001, '没有数据');
end;
(2)自� ......
因为明摆着的缘故，10.2引出的TDE效能对列加密以后，招致相干目录丧失了对不等式的判断能力。
如次：
ENCRYPTIONDEMO@fmw//scripts> create table tde_table(id number encrypt no salt,na
me varchar二(30))
二 ;
Table created.
Elapsed: 00:00:00.11
ENCRYPTIONDEMO@fmw//scripts> begin
二 for i in 1..2 ......
Webspere配备Oracle RAC集群数据源，Oracle双机的IP为10.10.10.121与10.10.10.122 ，范例名位别为orcl一与orcl二，服务名叫oracledbservice，采取联接串应为：
jdbc:oracle:thin:@(description=(ADDRESS_LIST=(ADDRESS = (PROTOCOL = TCP)(HOST = 10.10.10.121)(PORT = 1521))(ADDRESS = (PROTOCOL = TCP)(HOST = 10.10.10 ......
