Sql.exec <DB_pointer_数值变量>, <command_字符串表达式>, 130Sql.insert <DB_pointer_数值变量>, <table_name_字符串表达式>, C1$, V1$, C2$, V2$, ...,CN$, VN$, 128Sql.new_table <DB_pointer_数值变量>, <table_name_字符串表达式>, C1$, C2$, ...,CN$, 127Sql.next <done_<逻辑...
Using SQL*Plus SQL*Plus is a command-line tool that provides access to the Oracle RDBMS. SQL*Plus enables you to: Enter SQL*Plus commands to configure the SQL*Plus environment Startup and shutdown an Oracle database Connect to an Oracle database Enter an
使用CommandBuilder 时为 NullReferenceException 争用条件和死锁 使用跟踪和调试类 检查正在运行的程序 创建DCOM 客户端应用程序 以编程方式创建 SQL Server 数据库 当应用程序调用打印时,将字符串格式设置为 Right-Justify 使用XPathNavigator 类导航 XML 将值数组传递到存储过程 ...
You can display the structure of a table by using the DESCRIBE command. The command displays the column names and the data types, and it shows you whether a column must contain data(that is, whether the column has a NOT NULL constraint.) The structural metadata of a table may be obtained...
environment.DimcnAsSqlConnection =NewSqlConnection("Server=localhost;database=Northwind;UID=sa;PWD=")DimcmdAsSqlCommand =NewSqlCommand("SELECT * FROM Customers", cn) cn.Open()DimreaderAsSqlDataReader = cmd.ExecuteReader() DemoGrid.DataSource = reader DataBind() reader.Close() cn.Close()End...
使用CommandBuilder 时为 NullReferenceException 争用条件和死锁 使用跟踪和调试类 检查正在运行的程序 创建DCOM 客户端应用程序 以编程方式创建 SQL Server 数据库 当应用程序调用打印时,将字符串格式设置为 Right-Justify 使用XPathNavigator 类导航 XML 将值数组传递到存储过程 ...
使用CommandBuilder 时为 NullReferenceException 争用条件和死锁 使用跟踪和调试类 检查正在运行的程序 创建DCOM 客户端应用程序 以编程方式创建 SQL Server 数据库 当应用程序调用打印时,将字符串格式设置为 Right-Justify 使用XPathNavigator 类导航 XML 将值数组传递到存储过程 ...
To support NDB Cluster, you should update my.cnf as shown in the following example. You may also specify these parameters on the command line when invoking the executables. Note The options shown here should not be confused with those that are used in config.ini global configuration files. ...
environment.DimcnAsSqlConnection =NewSqlConnection("Server=localhost;database=Northwind;UID=sa;PWD=")DimcmdAsSqlCommand =NewSqlCommand("SELECT * FROM Customers", cn) cn.Open()DimreaderAsSqlDataReader = cmd.ExecuteReader() DemoGrid.DataSource = reader DataBind() reader.Close()...
These samples use a database called OMS and the script to create it is included in the DAL project folder in the code downloads. To install the database on your local sqlexpress instance, open a command prompt as an administrator and run the following: >sqlcmd -S .\sqlexpress -i "C...