how to read sql database

How to save images to a database:Public void imgtodb (string SQL) {// The imge variable name required to be saved in the parameter SQL is @ Images// Call method such as imgtodb ("Update userphoto set photo = @ images where userno = '" + temp + "'");Filestream FS = file. openread (t_photo.text );Byte [] imageb = new byte [fs. Length];FS. Read (imageb, 0, imageb. L

Read Catalogue Begin How SQL Server looks for records SQL Server Join method More specific execution procedures Index statistics: The choice of the query plan is based on Optimizing View Queries Recommended Reading-MSDN Articles For SQL Server optimizations, tuning queries can be a

Read SQL Server query planRead Catalogue Begin How SQL Server looks for records SQL Server Join method More specific execution procedures Index statistics: The choice of the query plan is based on Optimizing View Queries Recommended Reading-MSDN Articles For

How to save a picture to a database:public void Imgtodb (String sql){//parameter SQL required to save the IMGE variable name is @imagesCall method such as: Imgtodb ("Update Userphoto set[email protected]where userno= ' "+ temp +" ' ");FileStream fs = File.openread (T_photo. Text);byte[] Imageb = new Byte[fs. Length];Fs. Read (Imageb, 0, Imageb. Length);Fs. Close

How to save a picture to a database:public void Imgtodb (String sql){//parameter SQL required to save the IMGE variable name is @imagesCall method such as: Imgtodb ("Update Userphoto set[email protected]where userno= ' "+ temp +" ' ");FileStream fs = File.openread (T_photo. Text);byte[] Imageb = new Byte[fs. Length];Fs. Read (Imageb, 0, Imageb. Length);Fs. Close

One First you need to define a database interface function that can be saved as a single PHP page functiondb_connect() {$result = new mysqli('数据库地址', '账号', '密码', '库名');//连接数据库if (!$result) { returnfalse;//连接失败 } return$result;//返回数据库对象}?> Two In another PHP page, the first use of the include函数 PHP page contains the above, it is necessary to ensure that the above interface functions can be called correctly !--? php function

Read the database with C + +, there are 2 ideas, one is to use ODBC driver to write the program, the second is to open any of the file stream of DBF, and then in accordance with the format of DBF published the standard to write their own reading function. The latter posted on the Internet format specification, CSDN Jar also someone said that wrote, villain No, a few days, with the former to fix the problem.

Open Database ' On Error Resume NextSet conn = Server.CreateObject ("ADODB. Connection ")ConnStr = "Provider=Microsoft.Jet.OLEDB.4.0;Data source=" Server.MapPath ("Data/db.mdb")Conn.Open ConnStr% > Close Database Conn.closeSet conn = Nothing% > Repair Gamma I database information ' Insertsql = "INSERT into Branchtype (BRANCHNAME,SJ) VALUES ('" Branchname ",

. The SQL Server system has some problems. SQL Server is a set of large professional database software, which often requires maintenance and cleaning. However, we system developers cannot always go to the users for maintenance, this is especially costly for commercial software. If you can put the maintenance work on SQL