45 lines
1 KiB
Go
45 lines
1 KiB
Go
package main
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import (
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"context"
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"fmt"
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"os"
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"github.com/jackc/pgx/v5"
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)
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func main() {
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dbURL := "postgres://user:pass@localhost:54322/photum-v2?sslmode=disable"
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conn, err := pgx.Connect(context.Background(), dbURL)
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if err != nil {
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fmt.Fprintf(os.Stderr, "Unable to connect to database: %v\n", err)
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os.Exit(1)
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}
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defer conn.Close(context.Background())
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rows, err := conn.Query(context.Background(), "SELECT id, ano_semestre, regiao FROM anos_formaturas ORDER BY ano_semestre, regiao")
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if err != nil {
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fmt.Fprintf(os.Stderr, "Query failed: %v\n", err)
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os.Exit(1)
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}
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defer rows.Close()
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fmt.Println("--- ANOS FORMATURAS DUMP ---")
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fmt.Printf("%-36s | %-10s | %-5s\n", "ID", "Ano", "Reg")
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for rows.Next() {
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var id string
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var ano string
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var reg *string
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err := rows.Scan(&id, &ano, ®)
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if err != nil {
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fmt.Printf("Scan error: %v\n", err)
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continue
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}
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regVal := "NULL"
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if reg != nil {
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regVal = *reg
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}
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fmt.Printf("%-36s | %-10s | %-5s\n", id, ano, regVal)
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}
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fmt.Println("----------------------------")
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}
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