use the SQL Server Northwind database demo).
Manage Connections
L, establish a connection
Note: If the code for all the examples in this article uses a connection, the connection handle "CON" is generated by default in "Establish Connection" code.
Wait \ ' Connect to SQL Server ' nowait noclear WINDOW
Sqlsetprop (0, "Displogin", 3) set environment to "Never Show ODBC logon dialog box."
Con=sqlstringconn
action
Rec1. Close
Rec2. Close
REC3. Close
Set REC1 = Nothing
Set rec2 = Nothing
Set REC3 = Nothing
To conserve resources, you should first create a connection object and pass it on to all objects that require active connections. In other words, the above code should be changed to the following form:
Dim con as ADODB. Connection
Dim REC1 as ADODB. Record
Dim rec2 as ADODB. Record
Dim REC3 as ADODB. Record
Set co
Previous article http://www.cnblogs.com/qixi233/p/4766451.htmlThis is the operation of SQL ServerInterface comparison walking heart hahaha, will look, the main is the following additions and deletions to check four BTNThere are several basic operations for SQL Server:
Switch SqlConnection
SqlCommand "SQL command" and "SQLConnection" connection
Executes the command and feeds the result of the action to the user based on the return value
Now start the operation: (the code is
classes in the Microsoft. sqlserver. Server namespace are responsible for CLR integration of SQL Server.
Note: ThisProgramOperate the "North Wind trade" database and "Order Master" table. The fields in the table are: Order Number in sequence.(INT), Delivery City(Nvarchar (15 ))...Other fields are omitted.
Stored Procedure with no return value
In this section, we will see how to write a stored procedure that executes some logic but does not return any values or output parameters. In this e
Use ADO. net can connect to SQL Server, access, Excel, XML and other databases. First, create a connection and then use the connection. open the connection before use, and remember to close the connection. the following sections describe:1. Connect to SQL ServerThe using system. data; and using system. Data. sqlclient are required. complete code is used from creation to use:{String strconnection = "Server = (local); database = yourdatabase; Integrated Security = true ;";// If your database serve
Download SQLite from http://initd.org/tracker/pysqlite/wiki/pysqlite
Python binding. Use sqlite3.exe in Windows to create a database and a table:
++
-Database: Wanna
-Table Name: Hello
-ID name
-------------
Handsome guy 0
1 wannachan
2 dick. Chan
3 Wenwen
++
Now, the table is created successfully! Next, start pysqlite to operate this database! So excited ~~First, establish a connection:>>> From pysqlite2 import dbapi2 as SQLite>>> Con = SQLite. Conn
Public Class FRMDLDim x As Single = 0Dim y As Single = 0Private Sub frmdl_load (ByVal sender as System.Object, ByVal e as System.EventArgs) Handles MyBase.Loadx = Me.Widthy = me.heightSettag (Me)End Sub' recursively take control of the original size and position, using tag to recordPrivate Sub Settag (ByVal obj as Object)For each con as Control in obj. ControlsCon. Tag = con. Width ":"
Student Management System and student information management system1. logon form
Basic controls:
Label)
Main attributes: Image (the Image displayed on the tag)
Text (Text displayed on tags)
TextBox (text box Control)
Main attribute: PasswordChar (indicating the characters displayed in the text box when the password is used, rather than the text actually entered)
Button)
ComboBox (drop-down box) attribute: SelectedItem: gets the currently selected item
Event: Click (when the control is clicked)
#-*-Coding:utf-8-*-
Import Select
Import socket
Import datetime
response = B "Hello, world!"
Sock = Socket.socket ()
# When you need to set the socket option, you need to first set the Socketlevel to Sol_socket sol=socket option level
# So_ REUSEADDR represents the reuse of the address reuse addr
sock.setsockopt (socket. Sol_socket, SOCKET. SO_REUSEADDR, 1)
sock.bind (("localhost", 10000))
Sock.listen (5)
sock.setblocking (0)
inputs = [ Sock,] while
True:
print (Datetime.datetime.now
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