ODBC database driver for GO:GO access to SQL S via ODBC

Source: Internet
Author: User
Tags odbc
This is an article created on, where the information may have evolved or changed.
Go language accesses the SQL server through ODBC. The go-odbc library needs to be used here.

1. Driver installation
Open GOPATH in cmd:

Go to src directory

Get the odbc driver through git in the src directory:

git clone git: //github.com/weigj/go-odbc.git odbc
Go to the odbc directory:
Run the go install command:
Prompt that gcc compiler is not installed, go to the official website to download http://tdm-gcc.tdragon.net/

Second, install gcc
Or Download mingw-w64-install.exe (170.0 kB), restart after installation.

It is mingw-w64-install.exe (https://sourceforge.net/projects/mingw-w64/) installation process:

Configure the Gcc environment, open system variables, modify Path, add E: \ Program Files \ mingw-w64 \ x86_64-5.3.0-posix-seh-rt_v4-rev0 \ mingw64 \ bin, such as:

Run the go install command again, no error message is displayed, such as:

Third, the sample program
Idea: link to database-> create a query-> display query results

package main import ("database / sql"
    "fmt" _ "odbc / driver") func main () {fmt.Printf ("% s \ n", "Create Database Link") conn, err: = sql.Open ("odbc", "Driver = {SQL Server}; SERVER =. \\ sql2008; UID = sa; PWD=admin@163.com; DATABASE = DTcmsdb4 ") if err! = Nil {fmt.Println (" Link error ") return} defer conn.Close () fmt.Printf ("% s \ n", "Build query") stmt, err: = conn.Prepare ("select id from dt_article") if err! = nil {fmt.Println ("Query exception:", err) return} defer stmt.Close () row, err: = stmt.Query () if err! = nil {fmt.Println ("Query error:", err)} defer row.Close () fmt.Printf ("% s \ n "," Data Set Display ") for row.Next () {var id int
        if err: = row.Scan (& id); err == nil {fmt.Println (id)}} fmt.Printf ("% s \ n", "Complete query") return}
The problem is coming, run successfully through the command line:

When running through VSC, the following error is prompted:

Reason for analysis: My first go.go file and access-sqlserver.go in the D: \ GoWorks directory have main functions.

Solution: Modify the main function name in my first go.go file to maina.

During the commissioning, success:

In summary, in VSC, all files in the same directory are compiled.
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