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