JDBC測試：[PostgreSQL/MariaDB：工作]和[Firebird/SQLite：錯誤]

我想比較SQL腳本的執行時間。這是我的代碼：JDBC測試：[PostgreSQL/MariaDB：工作]和[Firebird/SQLite：錯誤]

import java.sql.*; 
import java.io.BufferedReader; 
import java.io.FileReader; 

public class TempsRequete { 
    public static void main(String[] argv) { 

    String adresseScript = new String("C:/PTUT/ScriptsSQL/test.sql"); 

    // Enregistrement driver PostgreSQL 
    System.out.println("Test driver PostgreSQL"); 
    try { 
    Class.forName("org.postgresql.Driver"); 
    } catch (ClassNotFoundException cnfe) { 
    System.out.println("Driver introuvable !"); 
    cnfe.printStackTrace(); 
    System.exit(1); 
    } 
    System.out.println("-> Driver PostgreSQL : OK"); 

    // Enregistrement driver Firebird 
    System.out.println("Test driver Firebird"); 
    try { 
    Class.forName("org.firebirdsql.jdbc.FBDriver"); 
    } catch (ClassNotFoundException cnfe) { 
    System.out.println("Driver introuvable !"); 
    cnfe.printStackTrace(); 
    System.exit(1); 
    } 
    System.out.println("-> Driver Firebird : OK"); 

    // Enregistrement driver MariaDB 
    System.out.println("Test driver MariaDB"); 
    try { 
    Class.forName("com.mysql.jdbc.Driver"); 
    } catch (ClassNotFoundException cnfe) { 
    System.out.println("Driver introuvable !"); 
    cnfe.printStackTrace(); 
    System.exit(1); 
    } 
    System.out.println("-> Driver MariaDB : OK"); 

    // Enregistrement driver SQLite 
    System.out.println("Test driver SQLite"); 
    try { 
    Class.forName("org.sqlite.JDBC"); 
    } catch (ClassNotFoundException cnfe) { 
    System.out.println("Driver introuvable !"); 
    cnfe.printStackTrace(); 
    System.exit(1); 
    } 
    System.out.println("-> Driver SQLite : OK"); 



    // Connexion PostgreSQL 
    System.out.println("Connexion PostgreSQL"); 
    Connection c1 = null; 
    try { 
    c1 = DriverManager.getConnection("jdbc:postgresql://localhost:5432/bdd_postgresql", "ptut_postgresql", "PassPTUT"); 
    } catch (SQLException se) { 
    System.out.println("Connexion impossible."); 
    se.printStackTrace(); 
    System.exit(1); 
    } 
    System.out.println("-> Connexion PostgreSQL réussie !"); 

    // Connexion MariaDB 
    System.out.println("Connexion MariaDB"); 
    Connection c2 = null; 
    try { 
    c2 = DriverManager.getConnection("jdbc:mysql://localhost:3306/BDD_MariaDB", "PTUT_MariaDB", "PassPTUT"); 
    } catch (SQLException se) { 
    System.out.println("Connexion impossible."); 
    se.printStackTrace(); 
    System.exit(1); 
    } 
    System.out.println("-> Connexion MariaDB réussie !"); 

    // Connexion Firebird 
    System.out.println("Connexion Firebird"); 
    Connection c3 = null; 
    try { 
    c3 = DriverManager.getConnection("jdbc:firebirdsql:localhost/3050:C:/PTUT/BDD/Firebird/BDD_Firebird.db", "PTUT_Firebird", "PassPTUT"); 
    } catch (SQLException se) { 
    System.out.println("Connexion impossible."); 
    se.printStackTrace(); 
    System.exit(1); 
    } 
    System.out.println("-> Connexion Firebird réussie !"); 

    // Connexion SQLite 
    System.out.println("Connexion SQLite"); 
    Connection c4 = null; 
    try { 
    c4 = DriverManager.getConnection("jdbc:sqlite:C:/PTUT/BDD/SQLite/BDD_SQLite.db"); 
    } catch (SQLException se) { 
    System.out.println("Connexion impossible."); 
    se.printStackTrace(); 
    System.exit(1); 
    } 
    System.out.println("-> Connexion SQLite réussie !"); 



    // Execution requête PostgreSQL 
    System.out.println("\n### Exécution requête PostgreSQL ###"); 
    ScriptRunner runner1 = new ScriptRunner(c1, false, false); 
    long begin1 = System.currentTimeMillis(); //System.out.println("==> Temps de départ : " + begin1); 
    try { 
    runner1.runScript(new BufferedReader(new FileReader(adresseScript))); 
    } catch(Exception e) { 
    e.printStackTrace(); 
    } 
    long end1 = System.currentTimeMillis(); //System.out.println("==> Temps d'arrivée : " + end1); 

    // Execution requête MariaDB 
    System.out.println("\n### Exécution requête MariaDB ###"); 
    ScriptRunner runner2 = new ScriptRunner(c2, false, false); 
    long begin2 = System.currentTimeMillis(); //System.out.println("==> Temps de départ : " + begin2); 
    try { 
    runner2.runScript(new BufferedReader(new FileReader(adresseScript))); 
    } catch(Exception e) { 
    e.printStackTrace(); 
    } 
    long end2 = System.currentTimeMillis(); //System.out.println("==> Temps d'arrivée : " + end2); 

    // Execution requête Firebird 
    System.out.println("\n### Exécution requête Firebird ###"); 
    ScriptRunner runner3 = new ScriptRunner(c3, false, false); 
    long begin3 = System.currentTimeMillis(); //System.out.println("==> Temps de départ : " + begin3); 
    try { 
    runner3.runScript(new BufferedReader(new FileReader(adresseScript))); 
    } catch(Exception e) { 
    e.printStackTrace(); 
    } 
    long end3 = System.currentTimeMillis(); //System.out.println("==> Temps d'arrivée : " + end3); 

    // Execution requête SQLite 
    System.out.println("\n### Exécution requête SQLite ###"); 
    ScriptRunner runner4 = new ScriptRunner(c4, false, false); 
    long begin4 = System.currentTimeMillis(); //System.out.println("==> Temps de départ : " + begin4); 
    try { 
    runner4.runScript(new BufferedReader(new FileReader(adresseScript))); 
    } catch(Exception e) { 
    e.printStackTrace(); 
    } 
    long end4 = System.currentTimeMillis(); //System.out.println("==> Temps d'arrivée : " + end4); 



    // Temps PostgreSQL 
    float time1 = ((float) (end1-begin1))/1000f; 
    System.out.println("\nTemps PostgreSQL :"); 
    System.out.println("/------------------------------\\"); 
    System.out.println("| Temps d'exécution : " + time1 + " sec |"); 
    System.out.println("\\------------------------------/"); 

    // Temps MariaDB 
    float time2 = ((float) (end2-begin2))/1000f; 
    System.out.println("\nTemps MariaDB :"); 
    System.out.println("/------------------------------\\"); 
    System.out.println("| Temps d'exécution : " + time2 + " sec |"); 
    System.out.println("\\------------------------------/"); 

    // Temps Firebird 
    float time3 = ((float) (end3-begin3))/1000f; 
    System.out.println("\nTemps Firebird :"); 
    System.out.println("/------------------------------\\"); 
    System.out.println("| Temps d'exécution : " + time3 + " sec |"); 
    System.out.println("\\------------------------------/"); 

    // Temps SQLite 
    float time4 = ((float) (end4-begin4))/1000f; 
    System.out.println("\nTemps SQLite :"); 
    System.out.println("/------------------------------\\"); 
    System.out.println("| Temps d'exécution : " + time4 + " sec |"); 
    System.out.println("\\------------------------------/"); 
    } 
}

我用the ScriptRunner class了。

C：/PTUT/ScriptsSQL/test.sql：

CREATE TABLE TEST123(a INTEGER, b VARCHAR(50), c VARCHAR(50)); 
INSERT INTO TEST123 VALUES(1, 'Riri', 'Tic'); 
INSERT INTO TEST123 VALUES(2, 'Fifi', 'Tac'); 
INSERT INTO TEST123 VALUES(3, 'Loulou', 'Toc'); 
SELECT * FROM TEST123; 
SELECT * FROM TEST123;

輸出：

Test driver PostgreSQL 
-> Driver PostgreSQL : OK 
Test driver Firebird 
-> Driver Firebird : OK 
Test driver MariaDB 
-> Driver MariaDB : OK 
Test driver SQLite 
-> Driver SQLite : OK 
Connexion PostgreSQL 
-> Connexion PostgreSQL réussie ! 
Connexion MariaDB 
-> Connexion MariaDB réussie ! 
Connexion Firebird 
-> Connexion Firebird réussie ! 
Connexion SQLite 
-> Connexion SQLite réussie ! 

### Exécution requête PostgreSQL ### 
CREATE TABLE TEST123(a INTEGER, b VARCHAR(50), c VARCHAR(50)) 
INSERT INTO TEST123 VALUES(1, 'Riri', 'Tic') 
INSERT INTO TEST123 VALUES(2, 'Fifi', 'Tac') 
INSERT INTO TEST123 VALUES(3, 'Loulou', 'Toc') 
SELECT * FROM TEST123 
SELECT * FROM TEST123 

### Exécution requête MariaDB ### 
CREATE TABLE TEST123(a INTEGER, b VARCHAR(50), c VARCHAR(50)) 
INSERT INTO TEST123 VALUES(1, 'Riri', 'Tic') 
INSERT INTO TEST123 VALUES(2, 'Fifi', 'Tac') 
INSERT INTO TEST123 VALUES(3, 'Loulou', 'Toc') 
SELECT * FROM TEST123 
SELECT * FROM TEST123 

### Exécution requête Firebird ### 
CREATE TABLE TEST123(a INTEGER, b VARCHAR(50), c VARCHAR(50)) 
INSERT INTO TEST123 VALUES(1, 'Riri', 'Tic') 
INSERT INTO TEST123 VALUES(2, 'Fifi', 'Tac') 
INSERT INTO TEST123 VALUES(3, 'Loulou', 'Toc') 
SELECT * FROM TEST123 
SELECT * FROM TEST123 
Error executing: INSERT INTO TEST123 VALUES(1, 'Riri', 'Tic') 
org.firebirdsql.jdbc.FBSQLException: GDS Exception. 335544569. Dynamic SQL Error 
SQL error code = -204 
Table unknown 
TEST123 
At line 1, column 13 
Error executing: INSERT INTO TEST123 VALUES(2, 'Fifi', 'Tac') 
org.firebirdsql.jdbc.FBSQLException: GDS Exception. 335544569. Dynamic SQL Error 
SQL error code = -204 
Table unknown 
TEST123 
At line 1, column 13 
Error executing: INSERT INTO TEST123 VALUES(3, 'Loulou', 'Toc') 
org.firebirdsql.jdbc.FBSQLException: GDS Exception. 335544569. Dynamic SQL Error 
SQL error code = -204 
Table unknown 
TEST123 
At line 1, column 13 
Error executing: SELECT * FROM TEST123 
org.firebirdsql.jdbc.FBSQLException: GDS Exception. 335544569. Dynamic SQL Error 
SQL error code = -204 
Table unknown 
TEST123 
At line 1, column 15 
Error executing: SELECT * FROM TEST123 
org.firebirdsql.jdbc.FBSQLException: GDS Exception. 335544569. Dynamic SQL Error 
SQL error code = -204 
Table unknown 
TEST123 
At line 1, column 15 

### Exécution requête SQLite ### 
CREATE TABLE TEST123(a INTEGER, b VARCHAR(50), c VARCHAR(50)) 
Error executing: CREATE TABLE TEST123(a INTEGER, b VARCHAR(50), c VARCHAR(50)) 
java.sql.SQLException: no ResultSet available 
java.sql.SQLException: no ResultSet available 
    at ScriptRunner.runScript(ScriptRunner.java:242) 
    at ScriptRunner.runScript(ScriptRunner.java:110) 
    at TempsRequete.main(TempsRequete.java:142) 

Temps PostgreSQL : 
/-------------------------------\ 
| Temps d'exécution : 0.2 sec | 
\-------------------------------/ 

Temps MariaDB : 
/-------------------------------\ 
| Temps d'exécution : 0.09 sec | 
\-------------------------------/ 

Temps Firebird : 
/-------------------------------\ 
| Temps d'exécution : 0.16 sec | 
\-------------------------------/ 

Temps SQLite : 
/-------------------------------\ 
| Temps d'exécution : 0.05 sec | 
\-------------------------------/ 

Process completed.

我不知道爲什麼火鳥返回「表未知 」。我在isql（Firebird命令行）中輸入了相同的行，並且沒有問題。
而我沒有找到如何解決「java.sql.SQLException：沒有ResultSet可用」SQLite問題。

謝謝，如果你能幫助我！

來源

2011-03-18 pihug12

通過編寫一次代碼並簡單地更改驅動程序和連接URL，可以大大減少此測試的大小。這不就是JDBC的重點嗎？

聽起來像兩個失敗的數據庫沒有像成功的那樣設置。我會檢查你的假設。

來源

2011-03-18 23:25:43 duffymo

它們設置正確。連接測試正常，查詢在CLI中運行（psql.exe/mysql.exe/isql.exe/sqlite3.exe）。我知道我的代碼不是最優的，也不是很好。 – pihug12 2011-03-18 23:50:44

我認爲你需要提交Firebird的CREATE TABLE，然後才能在INSERT中使用它。

來源

2011-03-18 23:26:09

JDBC測試：[PostgreSQL/MariaDB：工作]和[Firebird/SQLite：錯誤]

回答

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