146.txt
来自「介绍VB里的各种控件的使用方法,窗口控制,图像编程以及OCX等内容,还提供了一个」· 文本 代码 · 共 40 行
TXT
40 行
直接通过 ODBC API 访问 SQL 数据库
*********************************
ODBC - Open DataBase Connectivity
*********************************
Basic Steps
Connecting to the SQL Server DataBase for retrieving information from tables
*************************************************************
The steps 1 - 3 are for connecting to the SQL Server Database
*************************************************************
1. Allocate ODBC Environment Handle
If SQLAllocEnv(glEnv) <> 0 Then
MsgBox "Unable to initialize ODBC API drivers!"
End
End If
______________________________________________________________
2. Allocate ODBC Database Handle
Dim iStatus As Integer
If SQLAllocConnect(glEnv, glDbc) <> 0 Then
MsgBox "Could not allocate memory for connection Handle!"
ODBCInit = False
' Free the Environment
iStatus = SQLFreeEnv(lEnv)
If iStatus = SQL_ERROR Then
MsgBox "Error Freeing Environment From ODBC Drivers"
End If
' Quit the
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