select建立表 oracle: create table table2 as (select * from table1); sqlserver: select * into table2 from table1;遞迴查詢 oracle: connect by select ... from <TableName> where <Conditional-1> start with
ADO.NET串連到 SQL ServerSQL Server .NET Framework 資料提供者支援類似於 OLE DB (ADO) 連接字串格式的連接字串格式。using (SqlConnection connection = new SqlConnection(connectionString)){connection.Open();// Do work here.}串連到 OLE DB 資料來源(Access)OLE DB .NET Framework 資料提供者通過
1、去www.oracle.com下載Instant Client Package - Basic: All files required to run OCI, OCCI, and JDBC-OCI applications,instantclient-basic-nt-11.2.0.3.0.zip (51,149,941
資料庫壞得只剩下不完整的資料檔案時,可以考慮使用這些資料檔案建立一個新的資料庫。兩個連結:How to and when to recreate control files. http://www.dbasupport.com/forums/showthread.php?s=&threadid=34259 http://www.dbasupport.com/forums/archive/index.php/t-34966.html第二個文章中提到:利用 datafile
The initialization parameter OPEN_CURSORS in INITSID.ORA determines the maximum number of cursors per user. Check the parameter specified by executing the following SQL: select * from v$parameter where name = 'open_cursors' / If you want more
194. /*+ORDERED*/根據表出現在FROM 中的順序,ORDERED 使ORACLE依此順序對其串連。例如:SELECT /*+ORDERED*/ A.COL1,B.COL2,C.COL3 FROM TABLE1 A,TABLE2 B,TABLE3 C WHERE A.COL1=B.COL1 AND B.COL1=C.COL1;195. /*+USE_NL(TABLE)*/將指定表與嵌套的串連的行源進行串連,並把指定表作為內部表。例如:SELECT /*+ORDERED