If you want to connect to a database running on a remote system, you need to include a connect string when starting SQL Command Line. For example: sqlplus hr/my_hr_password@host_computer_name After you have started SQL Command Line, theSQL>prompt displays as follows: SQL> At theSQL>pro...
Use the “Create Database” command to create a brand new oracle database from the command line. This method is helpful when you don’t have console access to the server to launch the DBCA. Or, when your server doesn’t have Xterm setup properly, use this method. 1. Setup Appropriate ...
Oracle Database 10g以上のデータベースでは、BINARY_FLOATおよびBINARY_DOUBLEという2つの新しいネイティブ・データ型がサポートされています。 BINARY_FLOATおよびBINARY_DOUBLEデータ型はそれぞれ、単精度浮動小数点値と倍精度小数点値を表します。 OracleParameterバインドでは、アプリケーション...
Failed to connect to the database ORA-01017: invalid username/password; logon denied ORA-27037: unable to obtain file status Linux-x86_64 Error: 2: No such file or directory Additional information: 3 SP2-0751: Unable to connect to Oracle. Exiting SQL*Plus Died at /opt/oracle/oak/lib/...
Represents an SQL statement or stored procedure to execute against a database. This class cannot be inherited. C#Copy [System.Obsolete("OracleCommand has been deprecated. http://go.microsoft.com/fwlink/?LinkID=144260", false)]publicsealedclassOracleCommand:System.Data.Common.DbCommand,ICloneable ...
The following example creates an OracleCommand and then executes it by using ExecuteNonQuery. The example is passed a string that is an SQL statement (such as UPDATE, INSERT, or DELETE) and a string to use to connect to the database. C# Copy public void CreateOracleCommand(string myExecute...
The following example creates an OracleCommand, and then executes it by passing a string that is an SQL SELECT statement, and a string to use to connect to the database. CommandBehavior is then set to CloseConnection. C# Copy public void CreateMyOracleDataReader(string queryString, string co...
OracleDataReader AnOracleDataReaderobject. Examples The following example creates anOracleCommand, and then executes it by passing a string that is an SQL SELECT statement, and a string to use to connect to the database.CommandBehavioris then set toCloseConnection. ...
When creating databases, you can specify a template database and set different character sets and collations for each database.You can connect to your instance using the
12.数据库文件的移动方法 当想将数据库文件移动到另外一个目录下时,可以用ALTER DATABASE命令来移动(比ALTER TABLESPACE适用性强): 1. 使用SERVER MANAGER关闭实例. SVRMGR > connect internal; SVRMGR > shutdown; SVRMGR >exit; 2. 使用操作系统命令来移动数据库文件位置(假设这里操作系统为SOLARIS 2.6). 在...