1.分頁查詢select * from (select rownum no, e.* from (select * from emp order by sal desc) e where rownum<=5 ) where no>=3select * from (select rownum no,e.* from (select * from emp order by sal desc) e) where no>=3 and
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、建立2個新的日誌組 alter database add logfile group 4 ('D:\ORACLE\ORADATA\ORADB\REDO04_1.LOG') size 1024k; alter database add logfile group 5 ('D:\ORACLE\ORADATA\ORADB\REDO05_1.LOG') size 1024k; 2、切換當前日誌到新的日誌組 alter system switch logfile; alter system
問題 1:無法啟用乙太網路裝置。錯誤訊息為“Cannot activate network device eth0!Device eth0 has different MAC address than expected, ignoring.” 解決方案:“ifconfig”報告的 MAC 位址與 /etc/sysconfig/network-scripts/ifcfg-eth0 不匹配。您可以使用新的 MAC 位址更新檔案,或者只需通過 system-config-network 工具探測新的
oracle分區表學習及應用-- Create table(建立分區表)create table BILL_MONTHFEE_ZERO( SERV_ID NUMBER(20) not null, BILLING_CYCLE_MONTH NUMBER(6) not null, DATE_TYPE NUMBER(1), ACC_NBR VARCHAR2(80)) partition by range
在ASP.NET+ORACLE添加資料記錄並讓ID自動增量需要在ORACLE中設序列和觸發器即可,切記不是索引,ASP.NET中不管ID,具體如下:1、建立序列: CREATE SEQUENCE seq_emergency_id NOCYCLE MAXVALUE 9999999999 START WITH 2; 2、建立觸發器: CREATE OR REPLACE TRIGGER set_emergency_id BEFORE INSERT ON "EMERGENCY"FOR EACH
1、在oracle的sqlplus或其他工具中運行一下pl/sql塊建立預存程序--------------------------------------------------------------分頁預存程序--------------------------------------------------------------建立包create or replace package testpackage astype test_cursor is ref cursor;end