diff --git a/tests/examples/go/src/taosapp/taosapp.go b/tests/examples/go/src/taosapp/taosapp.go index 5c7b92f6fbc22d8f5a784409b797891a19829417..30126ea571beeb84f8a46e7053ede97f8202ee71 100644 --- a/tests/examples/go/src/taosapp/taosapp.go +++ b/tests/examples/go/src/taosapp/taosapp.go @@ -13,13 +13,13 @@ * along with this program. If not, see . */ package main - + import ( "database/sql" "time" "log" "fmt" - _ "taosSql" + _ "github.com/taosdata/driver-go/taosSql" ) func main() { @@ -29,7 +29,7 @@ func main() { fmt.Printf("\n======== start demo test ========\n") // open connect to taos server - db, err := sql.Open(taosDriverName, "root:taosdata@/tcp(127.0.0.1:0)/demodb") + db, err := sql.Open(taosDriverName, "root:taosdata@/tcp(127.0.0.1:0)/") if err != nil { log.Fatalf("Open database error: %s\n", err) } @@ -58,11 +58,11 @@ func main() { func drop_database(db *sql.DB, demodb string) { st := time.Now().Nanosecond() - res, err := db.Exec("drop database " + demodb) - checkErr(err) + res, err := db.Exec("drop database if exists " + demodb) + checkErr(err, "drop database if exists " + demodb) affectd, err := res.RowsAffected() - checkErr(err) + checkErr(err, "drop db, res.RowsAffected") et := time.Now().Nanosecond() @@ -73,10 +73,10 @@ func create_database(db *sql.DB, demodb string) { st := time.Now().Nanosecond() // create database res, err := db.Exec("create database " + demodb) - checkErr(err) + checkErr(err, "create db, db.Exec") affectd, err := res.RowsAffected() - checkErr(err) + checkErr(err, "create db, res.RowsAffected") et := time.Now().Nanosecond() @@ -89,10 +89,10 @@ func use_database(db *sql.DB, demodb string) { st := time.Now().Nanosecond() // use database res, err := db.Exec("use " + demodb) // notes: must no quote to db name - checkErr(err) + checkErr(err, "use db db.Exec") affectd, err := res.RowsAffected() - checkErr(err) + checkErr(err, "use db, res.RowsAffected") et := time.Now().Nanosecond() @@ -103,10 +103,10 @@ func create_table(db *sql.DB, demot string) { st := time.Now().Nanosecond() // create table res, err := db.Exec("create table " + demot + " (ts timestamp, id int, name binary(8), len tinyint, flag bool, notes binary(8), fv float, dv double)") - checkErr(err) + checkErr(err, "create table db.Exec") affectd, err := res.RowsAffected() - checkErr(err) + checkErr(err, "create table res.RowsAffected") et := time.Now().Nanosecond() fmt.Printf("create table result:\n %d row(s) affectd (%6.6fs)\n\n", affectd, (float32(et-st))/1E9) @@ -120,10 +120,10 @@ func insert_data(db *sql.DB, demot string) { " (now+1s, 101, 'shanghai', 11, true, 'two', 789.123, 789.123)" + " (now+2s, 102, 'shenzhen', 12, false, 'three', 456.789, 456.789)") - checkErr(err) + checkErr(err, "insert data, db.Exec") affectd, err := res.RowsAffected() - checkErr(err) + checkErr(err, "insert data res.RowsAffected") et := time.Now().Nanosecond() fmt.Printf("insert data result:\n %d row(s) affectd (%6.6fs)\n\n", affectd, (float32(et-st))/1E9) @@ -133,7 +133,7 @@ func select_data(db *sql.DB, demot string) { st := time.Now().Nanosecond() rows, err := db.Query("select * from ? " , demot) // go text mode - checkErr(err) + checkErr(err, "select db.Query") fmt.Printf("%10s%s%8s %5s %9s%s %s %8s%s %7s%s %8s%s %4s%s %5s%s\n", " ","ts", " ", "id"," ", "name"," ","len", " ","flag"," ", "notes", " ", "fv", " ", " ", "dv") var affectd int @@ -148,7 +148,7 @@ func select_data(db *sql.DB, demot string) { var dv float64 err = rows.Scan(&ts, &id, &name, &len, &flag, ¬es, &fv, &dv) - checkErr(err) + checkErr(err, "select rows.Scan") fmt.Printf("%s\t", ts) fmt.Printf("%d\t",id) @@ -170,15 +170,11 @@ func select_data(db *sql.DB, demot string) { func drop_database_stmt(db *sql.DB,demodb string) { st := time.Now().Nanosecond() // drop test db - stmt, err := db.Prepare("drop database ?") - checkErr(err) - defer stmt.Close() - - res, err := stmt.Exec(demodb) - checkErr(err) + res, err := db.Exec("drop database if exists " + demodb) + checkErr(err, "drop database " + demodb) affectd, err := res.RowsAffected() - checkErr(err) + checkErr(err, "drop db, res.RowsAffected") et := time.Now().Nanosecond() fmt.Printf("drop database result:\n %d row(s) affectd (%6.6fs)\n\n", affectd, (float32(et-st))/1E9) @@ -189,15 +185,15 @@ func create_database_stmt(db *sql.DB,demodb string) { // create database //var stmt interface{} stmt, err := db.Prepare("create database ?") - checkErr(err) + checkErr(err, "create db, db.Prepare") //var res driver.Result res, err := stmt.Exec(demodb) - checkErr(err) + checkErr(err, "create db, stmt.Exec") //fmt.Printf("Query OK, %d row(s) affected()", res.RowsAffected()) affectd, err := res.RowsAffected() - checkErr(err) + checkErr(err, "create db, res.RowsAffected") et := time.Now().Nanosecond() fmt.Printf("create database result:\n %d row(s) affectd (%6.6fs)\n\n", affectd, (float32(et-st))/1E9) @@ -208,13 +204,13 @@ func use_database_stmt (db *sql.DB,demodb string) { // create database //var stmt interface{} stmt, err := db.Prepare("use " + demodb) - checkErr(err) + checkErr(err, "use db, db.Prepare") res, err := stmt.Exec() - checkErr(err) + checkErr(err, "use db, stmt.Exec") affectd, err := res.RowsAffected() - checkErr(err) + checkErr(err, "use db, res.RowsAffected") et := time.Now().Nanosecond() fmt.Printf("use database result:\n %d row(s) affectd (%6.6fs)\n\n", affectd, (float32(et-st))/1E9) @@ -224,14 +220,14 @@ func create_table_stmt (db *sql.DB,demot string) { st := time.Now().Nanosecond() // create table // (ts timestamp, id int, name binary(8), len tinyint, flag bool, notes binary(8), fv float, dv double) - stmt, err := db.Prepare("create table ? (? timestamp, ? int, ? binary(8), ? tinyint, ? bool, ? binary(8), ? float, ? double)") - checkErr(err) + stmt, err := db.Prepare("create table ? (? timestamp, ? int, ? binary(10), ? tinyint, ? bool, ? binary(8), ? float, ? double)") + checkErr(err, "create table db.Prepare") res, err := stmt.Exec(demot, "ts", "id", "name", "len", "flag", "notes", "fv", "dv") - checkErr(err) + checkErr(err, "create table stmt.Exec") affectd, err := res.RowsAffected() - checkErr(err) + checkErr(err, "create table res.RowsAffected") et := time.Now().Nanosecond() fmt.Printf("create table result:\n %d row(s) affectd (%6.6fs)\n\n", affectd, (float32(et-st))/1E9) @@ -241,15 +237,15 @@ func insert_data_stmt(db *sql.DB,demot string) { st := time.Now().Nanosecond() // insert data into table stmt, err := db.Prepare("insert into ? values(?, ?, ?, ?, ?, ?, ?, ?) (?, ?, ?, ?, ?, ?, ?, ?) (?, ?, ?, ?, ?, ?, ?, ?)") - checkErr(err) + checkErr(err, "insert db.Prepare") res, err := stmt.Exec(demot, "now" , 1000, "'haidian'" , 6, true, "'AI world'", 6987.654, 321.987, "now+1s", 1001, "'changyang'" , 7, false, "'DeepMode'", 12356.456, 128634.456, "now+2s", 1002, "'chuangping'" , 8, true, "'database'", 3879.456, 65433478.456,) - checkErr(err) + checkErr(err, "insert data, stmt.Exec") affectd, err := res.RowsAffected() - checkErr(err) + checkErr(err, "res.RowsAffected") et := time.Now().Nanosecond() fmt.Printf("insert data result:\n %d row(s) affectd (%6.6fs)\n\n", affectd, (float32(et-st))/1E9) @@ -259,12 +255,12 @@ func select_data_stmt(db *sql.DB, demot string) { st := time.Now().Nanosecond() stmt, err := db.Prepare("select ?, ?, ?, ?, ?, ?, ?, ? from ?" ) // go binary mode - checkErr(err) + checkErr(err, "db.Prepare") rows, err := stmt.Query("ts", "id","name","len", "flag","notes", "fv", "dv", demot) - checkErr(err) + checkErr(err, "stmt.Query") - fmt.Printf("%10s%s%8s %5s %9s%s %s %8s%s %7s%s %8s%s %11s%s %14s%s\n", " ","ts", " ", "id"," ", "name"," ","len", " ","flag"," ", "notes", " ", "fv", " ", " ", "dv") + fmt.Printf("%10s%s%8s %5s %8s%s %s %10s%s %7s%s %8s%s %11s%s %14s%s\n", " ","ts", " ", "id"," ", "name"," ","len", " ","flag"," ", "notes", " ", "fv", " ", " ", "dv") var affectd int for rows.Next() { var ts string @@ -279,7 +275,7 @@ func select_data_stmt(db *sql.DB, demot string) { err = rows.Scan(&ts, &id, &name, &len, &flag, ¬es, &fv, &dv) //fmt.Println("start scan fields from row.rs, &fv:", &fv) //err = rows.Scan(&fv) - checkErr(err) + checkErr(err, "rows.Scan") fmt.Printf("%s\t", ts) fmt.Printf("%d\t",id) @@ -298,8 +294,9 @@ func select_data_stmt(db *sql.DB, demot string) { fmt.Printf("insert data result:\n %d row(s) affectd (%6.6fs)\n\n", affectd, (float32(et-st))/1E9) } -func checkErr(err error) { +func checkErr(err error, prompt string) { if err != nil { + fmt.Printf("%s\n", prompt) panic(err) } }