Initial Commit

database.go

@@ -0,0 +1,50 @@
+package main
+
+import (
+	"database/sql"
+	"fmt"
+
+	_ "github.com/microsoft/go-mssqldb"
+)
+
+type Column struct {
+	Name               string
+	TypeName           string
+	MaxCharacterLength *int
+}
+
+func fetchTableMetadata() ([]Column, error) {
+	connStr := fmt.Sprintf("server=%s;user id=%s;password=%s;port=%d;database=%s;encrypt=disable",
+		host, username, password, port, dbname)
+
+	db, err := sql.Open("sqlserver", connStr)
+	if err != nil {
+		return nil, err
+	}
+	defer db.Close()
+
+	query := `
+		SELECT COLUMN_NAME, DATA_TYPE, CHARACTER_MAXIMUM_LENGTH
+		FROM INFORMATION_SCHEMA.COLUMNS 
+		WHERE TABLE_NAME = @tableName;
+	`
+
+	var columns []Column
+
+	rows, err := db.Query(query, sql.Named("tableName", table))
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	for rows.Next() {
+		var col Column
+		err = rows.Scan(&col.Name, &col.TypeName, &col.MaxCharacterLength)
+		if err != nil {
+			return nil, err
+		}
+		columns = append(columns, col)
+	}
+
+	return columns, nil
+}