cmd = New SqlCommand(sql, conn)
cmd.ExecuteNonQuery()
sql = "INSERT INTO myTable(myId, myName, myAddress, myValues) " + _
"VALUES (1003, '【孟宪会之精彩世界】之三', 'http://xml.sz.luohuedu.net/', 99) "
cmd = New SqlCommand(sql, conn)
cmd.ExecuteNonQuery()
sql = "INSERT INTO myTable(myId, myName, myAddress, myValues) " + _
"VALUES (1004, '【孟宪会之精彩世界】之四', 'http://www.erp800.com/net_lover/', 100) "
cmd = New SqlCommand(sql, conn)
cmd.ExecuteNonQuery()
Catch ae As SqlException
MessageBox.Show(ae.Message.ToString())
End Try
End Sub
'创建存储过程
Private Sub CreateSPBtn_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) _
Handles CreateSPBtn.Click
sql = "CREATE PROCEDURE myProc AS" + " SELECT myName, myAddress FROM myTable GO"
ExecuteSQLStmt(sql)
End Sub
'创建视图
Private Sub CreateViewBtn_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) _
Handles CreateViewBtn.Click
sql = "CREATE VIEW myView AS SELECT myName FROM myTable"
ExecuteSQLStmt(sql)
End Sub
'修改表
Private Sub btnAlterTable_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) _
54com.cn
Handles btnAlterTable.Click
sql = "ALTER TABLE MyTable ADD newCol datetime NOT NULL DEFAULT (getdate())"
ExecuteSQLStmt(sql)
End Sub
'创建规则和索引
Private Sub btnCreateOthers_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) _
Handles btnCreateOthers.Click
sql = "CREATE UNIQUE INDEX " + "myIdx ON myTable(myName)"
ExecuteSQLStmt(sql)
sql = "CREATE RULE myRule " + "AS @myValues >= 90 AND @myValues ExecuteSQLStmt(sql)
End Sub
'删除表
Private Sub btnDropTable_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) _
Handles btnDropTable.Click
Dim sql As String = "DROP TABLE MyTable"
ExecuteSQLStmt(sql)
End Sub

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Adding MySQL users through the PHP web interface can use MySQLi extensions. The steps are as follows: 1. Connect to the MySQL database and use the MySQLi extension. 2. Create a user, use the CREATEUSER statement, and use the PASSWORD() function to encrypt the password. 3. Prevent SQL injection and use the mysqli_real_escape_string() function to process user input. 4. Assign permissions to new users and use the GRANT statement.

MySQL'sBLOBissuitableforstoringbinarydatawithinarelationaldatabase,whileNoSQLoptionslikeMongoDB,Redis,andCassandraofferflexible,scalablesolutionsforunstructureddata.BLOBissimplerbutcanslowdownperformancewithlargedata;NoSQLprovidesbetterscalabilityand

ToaddauserinMySQL,use:CREATEUSER'username'@'host'IDENTIFIEDBY'password';Here'showtodoitsecurely:1)Choosethehostcarefullytocontrolaccess.2)SetresourcelimitswithoptionslikeMAX_QUERIES_PER_HOUR.3)Usestrong,uniquepasswords.4)EnforceSSL/TLSconnectionswith

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