獲取通過JBDC在IBM DB2 V6R1（AS400）上插入的行數

我們最近在AS400上遷移到較新的V6R1版本DB2，我們使用Spring框架（v.2.5.6）與數據庫進行通信。我們正在調用Spring的NamedParameterJdbcTemplate.update()方法來插入新行，這個方法應該返回插入行的數量，沒有發生什麼（我們得到的結果爲零），儘管定期插入行。獲取通過JBDC在IBM DB2 V6R1（AS400）上插入的行數

我們得出的結論是，如果插入語句中沒有主鍵列，一切正常，所以當PK列是自動增量時沒有問題，但在某些情況下，我們必須插入PK值，然後我們必須以某種方式應對定期插入的行不在JDBC或Spring中註冊。

有人可以幫忙嗎？

來源

2011-04-27 ante.sabo

我假設你正在使用的jt400.jar（即JTOpen iSeries版）到訪問數據庫？ – 2011-04-27 12:41:36

是的，可以從sourceforge下載的最新版本：7.3 – 2011-04-27 12:51:46

我們調試了JDBC並獲得了與V5有些不同的SQL，它包含了這個着名的新特性：編寫了STMT0001 *，SQL Statement - > [ SELECT * SQLGENCOLUMNS FROM FINAL TABLE（insert into test_v6r1（id，value）values（？，？））]。 – 2011-04-27 14:13:23

UPDATE：這issue已被固定在JTOpen 7.6

我和安特一起工作......問題無關與Spring，這是肯定的，因爲我設置一個項目它使用普通的JDBC和PreparedStatements。

所以我會添加一些更多的信息如何模擬問題：

DDL：

CREATE TABLE TEST_V6R1 (
     ID INTEGER NOT NULL DEFAULT, 
     VALUE VARCHAR(50) 
    ); 

ALTER TABLE TEST_V6R1 ADD CONSTRAINT TEST_V6R1_PK PRIMARY KEY 
    (ID);

SQL：

insert into test_v6r1 (id, value) values (?, ?)

Java代碼：

public class TestV6R1 { 

    public static void main(String[] args) { 
     Connection conn = null; 
     PreparedStatement ps1 = null; 
     PreparedStatement ps2 = null; 
     try { 
     conn = getNewConnection(); 
     conn.setAutoCommit(false); 

     String value = "Test: " + new Timestamp(System.currentTimeMillis()); 

     // First statement which uses RETURN_GENERATED_KEYS 
     ps1 = conn.prepareStatement("insert into test_v6r1 (id, value) values (?, ?)", Statement.RETURN_GENERATED_KEYS); 
     ps1.setInt(1, 1); 
     ps1.setString(2, value); 
     int ps1Rows = ps1.executeUpdate(); 
     // in case of V5R4 
     // ps1Rows is 1 
     // in case of V6R1 
     // ps1Rows is 0 

     ResultSet ps1keys = ps1.getGeneratedKeys(); 
     int ps1KeySize = 0; 
     if (ps1keys != null) { 
      ps1keys.last(); 
      ps1KeySize = ps1keys.getRow(); 
     } 
     System.out.println("PS1 - SQL insert affected " + ps1Rows + " rows and returned " + ps1KeySize + " keys"); 
     System.out.println("PS1 - getUpdateCount()="+ ps1.getUpdateCount()); 

     // Second statement which uses NO_GENERATED_KEYS 
     ps2 = conn.prepareStatement("insert into test_v6r1 (id, value) values (?, ?)", Statement.NO_GENERATED_KEYS); 
     ps2.setInt(1, 2); 
     ps2.setString(2, value); 
     int ps2Rows = ps2.executeUpdate(); 
     // in case of V5R4 
     // ps2Rows is 1 
     // in case of V6R1 
     // ps2Rows is 1 

     ResultSet ps2Keys = ps2.getGeneratedKeys(); 
     int ps2KeySize = 0; 
     if (ps2Keys != null) { 
      ps2Keys.last(); 
      ps2KeySize = ps2Keys.getRow(); 
     } 

     System.out.println("PS2 - SQL insert affected " + ps2Rows + " rows and returned " + ps2KeySize + " keys"); 
     System.out.println("PS2 - getUpdateCount()="+ ps2.getUpdateCount()); 

     conn.commit(); 
     } 
     catch (Throwable e) { 

     e.printStackTrace(); 
     try { 
      conn.rollback(); 
     } 
     catch (SQLException e1) { 
      e1.printStackTrace(); 
     } 
     } 
     finally { 
     try { 
      if (ps1!=null) ps1.close(); 
      if (ps2!=null) ps2.close(); 
      if (conn!=null) conn.close(); 
     } 
     catch (SQLException e) { 
      e.printStackTrace(); 
     } 
     } 

    } 

    public static Connection getNewConnection() { 
     try { 
     Class.forName("com.ibm.as400.access.AS400JDBCDriver"); // Or any other driver 
     } 
     catch (Exception x) { 
     System.out.println("Unable to load the driver class!"); 
     } 
     Connection dbConnection = null; 
     try { 
     // TEST - V6R1 
     dbConnection = DriverManager 
       .getConnection("jdbc:as400://testServer;libraries=*libl;naming=system;sort=language;sort language=HRV;sort weight=shared;prompt=false;trace=true", 
           "username", 
           "password"); 
     // PRODUCTION - V5R4 
//   dbConnection = DriverManager 
//   .getConnection("jdbc:as400://productionServer;libraries=*libl;naming=system;sort=language;sort language=HRV;sort weight=shared;prompt=false;trace=true", 
//       "username", 
//       "password"); 

     } 
     catch (SQLException x) { 
     System.out.println("Couldn’t get connection!"); 
     } 

     return dbConnection; 
    } 

}

V5R4控制檯輸出：

Toolbox for Java - Open Source Software, JTOpen 7.3, codebase 5770-SS1 V7R1M0.03 2011/01/14 @B5 
as400: Properties (12122347) : access = "all". 
as400: Properties (12122347) : block size = "32". 
as400: Properties (12122347) : block criteria = "2". 
as400: Properties (12122347) : date format = "". 
as400: Properties (12122347) : date separator = "". 
as400: Properties (12122347) : decimal separator = "". 
as400: Properties (12122347) : errors = "basic". 
as400: Properties (12122347) : extended dynamic = "false". 
as400: Properties (12122347) : libraries = "*libl". 
as400: Properties (12122347) : naming = "system". 
as400: Properties (12122347) : package = "". 
as400: Properties (12122347) : package add = "true". 
as400: Properties (12122347) : package cache = "false". 
as400: Properties (12122347) : package clear = "false". 
as400: Properties (12122347) : package error = "warning". 
as400: Properties (12122347) : package library = "". 
as400: Properties (12122347) : password = "". 
as400: Properties (12122347) : prefetch = "true". 
as400: Properties (12122347) : prompt = "false". 
as400: Properties (12122347) : remarks = "system". 
as400: Properties (12122347) : sort = "language". 
as400: Properties (12122347) : sort language = "HRV". 
as400: Properties (12122347) : sort table = "". 
as400: Properties (12122347) : sort weight = "shared". 
as400: Properties (12122347) : time format = "". 
as400: Properties (12122347) : time separator = "". 
as400: Properties (12122347) : trace = "true". 
as400: Properties (12122347) : transaction isolation = "read uncommitted". 
as400: Properties (12122347) : translate binary = "false". 
as400: Properties (12122347) : user = "username". 
as400: Properties (12122347) : package criteria = "default". 
as400: Properties (12122347) : lob threshold = "32768". 
as400: Properties (12122347) : secure = "false". 
as400: Properties (12122347) : data truncation = "true". 
as400: Properties (12122347) : proxy server = "". 
as400: Properties (12122347) : secondary URL = "". 
as400: Properties (12122347) : data compression = "true". 
as400: Properties (12122347) : big decimal = "true". 
as400: Properties (12122347) : thread used = "true". 
as400: Properties (12122347) : cursor hold = "true". 
as400: Properties (12122347) : lazy close = "false". 
as400: Properties (12122347) : driver = "toolbox". 
as400: Properties (12122347) : bidi string type = "5". 
as400: Properties (12122347) : key ring name = "". 
as400: Properties (12122347) : key ring password = "". 
as400: Properties (12122347) : full open = "false". 
as400: Properties (12122347) : server trace = "0". 
as400: Properties (12122347) : database name = "". 
as400: Properties (12122347) : extended metadata = "false". 
as400: Properties (12122347) : cursor sensitivity = "asensitive". 
as400: Properties (12122347) : behavior override = "0". 
as400: Properties (12122347) : package ccsid = "13488". 
as400: Properties (12122347) : minimum divide scale = "0". 
as400: Properties (12122347) : maximum precision = "31". 
as400: Properties (12122347) : maximum scale = "31". 
as400: Properties (12122347) : translate hex = "character". 
as400: Properties (12122347) : toolbox trace = "". 
as400: Properties (12122347) : qaqqinilib = "". 
as400: Properties (12122347) : login timeout = "". 
as400: Properties (12122347) : true autocommit = "false". 
as400: Properties (12122347) : bidi implicit reordering = "true". 
as400: Properties (12122347) : bidi numeric ordering = "false". 
as400: Properties (12122347) : hold input locators = "true". 
as400: Properties (12122347) : hold statements = "false". 
as400: Properties (12122347) : rollback cursor hold = "false". 
as400: Properties (12122347) : variable field compression = "true". 
as400: Properties (12122347) : query optimize goal = "0". 
as400: Properties (12122347) : keep alive = "". 
as400: Properties (12122347) : receive buffer size = "". 
as400: Properties (12122347) : send buffer size = "". 
as400: Properties (12122347) : XA loosely coupled support = "0". 
as400: Properties (12122347) : translate boolean = "true". 
as400: Properties (12122347) : metadata source = "-1". 
as400: Properties (12122347) : query storage limit = "-1". 
as400: Properties (12122347) : decfloat rounding mode = "half even". 
as400: Properties (12122347) : autocommit exception = "false". 
as400: Properties (12122347) : auto commit = "true". 
as400: Properties (12122347) : ignore warnings = "". 
as400: Properties (12122347) : secure current user = "true". 
as400: Properties (12122347) : concurrent access resolution = "0". 
as400: Properties (12122347) : jvm16 synchronize = "true". 
as400: Properties (12122347) : socket timeout = "". 
as400: Properties (12122347) : use block update = "false". 
as400: Properties (12122347) : maximum blocked input rows = "32000". 
as400: Driver AS/400 Toolbox for Java JDBC Driver (15779934) : Using IBM Toolbox for Java JDBC driver implementation. 
as400: Properties (12122347) : metadata source = "0". 
as400: Toolbox for Java - Open Source Software, JTOpen 7.3, codebase 5770-SS1 V7R1M0.03 2011/01/14 @B5 
as400: JDBC Level: 40 
as400: Properties (12122347) : package ccsid = "13488". 
as400: Connection productionServer (367156) : Client CCSID = 13488. 
as400: Connection productionServer (367156) : Setting server NLV = 2912. 
as400: Connection productionServer (367156) : Client functional level = V7R1M01 . 
as400: Connection productionServer (367156) : Data compression = RLE. 
as400: Connection productionServer (367156) : ROWID supported = true. 
as400: Connection productionServer (367156) : True auto-commit supported = true. 
as400: Connection productionServer (367156) : 128 byte column names supported = true. 
as400: Connection productionServer (367156) : Maximum decimal precision = 31. 
as400: Connection productionServer (367156) : Maximum decimal scale = 31. 
as400: Connection productionServer (367156) : Minimum divide scale = 0. 
as400: Connection productionServer (367156) : Translate hex = character. 
as400: Connection productionServer (367156) : query optimize goal = 0. 
as400: Connection productionServer (367156) : Using extended datastreams. 
as400: Connection productionServer (367156) : JDBC driver major version = 9. 
as400: Connection productionServer (367156) : IBM i VRM = V5R4M0. 
as400: Connection productionServer (367156) : Server CCSID = 870. 
as400: Connection productionServer (367156) : Server functional level = V5R4M00014 (14). 
as400: Connection productionServer (367156) : Server job identifier = 692621/QUSER/QZDASOINIT. 
as400: Properties (12122347) : decimal separator = ".". 
as400: Properties (12122347) : date format = "dmy". 
as400: Properties (12122347) : date separator = "/". 
as400: Properties (12122347) : time format = "hms". 
as400: Properties (12122347) : time separator = ":". 
as400: Connection productionServer (367156) open. 
as400: Connection productionServer (367156) : Auto commit = "true". 
as400: Connection productionServer (367156) : Read only = "false". 
as400: Connection productionServer (367156) : Transaction isolation = "1". 
as400: Connection productionServer (367156) : Auto commit = "false". 
as400: PreparedStatement STMT0001 (24864323) open. Parent: Connection productionServer (367156) . 
as400: PreparedStatement STMT0001 (24864323) : Escape processing = "true". 
as400: PreparedStatement STMT0001 (24864323) : Fetch direction = "1000". 
as400: PreparedStatement STMT0001 (24864323) : Fetch size = "0". 
as400: PreparedStatement STMT0001 (24864323) : Max field size = "0". 
as400: PreparedStatement STMT0001 (24864323) : Max rows = "0". 
as400: PreparedStatement STMT0001 (24864323) : Query timeout = "0". 
as400: PreparedStatement STMT0001 (24864323) : Result set concurrency = "1007". 
as400: PreparedStatement STMT0001 (24864323) : Result set holdability = "1". 
as400: PreparedStatement STMT0001 (24864323) : Result set type = "1003". 
as400: PreparedStatement STMT0001 (24864323) : Behavior Override = "0". 
as400: PreparedStatement STMT0001 (24864323) : Data to correlate statement with cursor Cursor CRSR0001 (7792807) . 
as400: PreparedStatement STMT0001 (24864323) : Preparing [insert into test_v6r1 (id, value) values (?, ?)]. 
as400: PreparedStatement STMT0001 (24864323) : Prepared STMT0001*, SQL Statement -->[insert into test_v6r1 (id, value) values (?, ?)]. 
as400: PreparedStatement STMT0001 (24864323) : setInt(). 
as400: PreparedStatement STMT0001 (24864323) : parameter index: 1 value: 1. 
as400: PreparedStatement STMT0001 (24864323) : setString(). 
as400: PreparedStatement STMT0001 (24864323) : parameter index: 2 value: Test: 2011-04-27 16:34:30.981. 
as400: PreparedStatement STMT0001 (24864323) : Descriptor 1 created or changed. 
as400: PreparedStatement STMT0001 (24864323) : returnCode is: 0. 
as400: PreparedStatement STMT0001 (24864323) : generated key from system is: null. 
as400: ResultSet (2850225) open. 
as400: ResultSet (2850225) : Conncurrency = "1007". 
as400: ResultSet (2850225) : Fetch direction = "1000". 
as400: ResultSet (2850225) : Fetch size = "0". 
as400: ResultSet (2850225) : Max rows = "0". 
as400: ResultSet (2850225) : Type = "1004". 
as400: PreparedStatement STMT0001 (24864323) : Executed STMT0001*, SQL Statement --> [insert into test_v6r1 (id, value) values (?, ?)]. 
as400: PreparedStatement STMT0001 (24864323) : Update count = 1. 
as400: PreparedStatement STMT0001 (24864323) : Result set = false. 
as400: PreparedStatement STMT0001 (24864323) : Number of result sets = 0. 
as400: PreparedStatement STMT0001 (24864323) : Row count estimate = -1. 
PS1 - SQL insert affected 1 rows and returned 0 keys 
PS1 - getUpdateCount()=1 
as400: PreparedStatement STMT0002 (19098837) open. Parent: Connection productionServer (367156) . 
as400: PreparedStatement STMT0002 (19098837) : Escape processing = "true". 
as400: PreparedStatement STMT0002 (19098837) : Fetch direction = "1000". 
as400: PreparedStatement STMT0002 (19098837) : Fetch size = "0". 
as400: PreparedStatement STMT0002 (19098837) : Max field size = "0". 
as400: PreparedStatement STMT0002 (19098837) : Max rows = "0". 
as400: PreparedStatement STMT0002 (19098837) : Query timeout = "0". 
as400: PreparedStatement STMT0002 (19098837) : Result set concurrency = "1007". 
as400: PreparedStatement STMT0002 (19098837) : Result set holdability = "1". 
as400: PreparedStatement STMT0002 (19098837) : Result set type = "1003". 
as400: PreparedStatement STMT0002 (19098837) : Behavior Override = "0". 
as400: PreparedStatement STMT0002 (19098837) : Data to correlate statement with cursor Cursor CRSR0002 (12470752) . 
as400: PreparedStatement STMT0002 (19098837) : Preparing [insert into test_v6r1 (id, value) values (?, ?)]. 
as400: PreparedStatement STMT0002 (19098837) : Prepared STMT0002*, SQL Statement -->[insert into test_v6r1 (id, value) values (?, ?)]. 
as400: PreparedStatement STMT0002 (19098837) : setInt(). 
as400: PreparedStatement STMT0002 (19098837) : parameter index: 1 value: 2. 
as400: PreparedStatement STMT0002 (19098837) : setString(). 
as400: PreparedStatement STMT0002 (19098837) : parameter index: 2 value: Test: 2011-04-27 16:34:30.981. 
as400: PreparedStatement STMT0002 (19098837) : Descriptor 2 created or changed. 
as400: PreparedStatement STMT0002 (19098837) : Executed STMT0002*, SQL Statement --> [insert into test_v6r1 (id, value) values (?, ?)]. 
as400: PreparedStatement STMT0002 (19098837) : Update count = 1. 
as400: PreparedStatement STMT0002 (19098837) : Result set = false. 
as400: PreparedStatement STMT0002 (19098837) : Number of result sets = 0. 
as400: PreparedStatement STMT0002 (19098837) : Row count estimate = -1. 
PS2 - SQL insert affected 1 rows and returned 0 keys 
PS2 - getUpdateCount()=1 
as400: Connection productionServer (367156) : Testing to see if cursors should be held.. 
as400: Connection productionServer (367156) : Transaction commit. 
as400: ResultSet (2850225) closed. 
as400: PreparedStatement STMT0001 (24864323) closed. 
as400: PreparedStatement STMT0002 (19098837) closed. 
as400: Connection productionServer (367156) closed.

V6R1控制檯輸出：

Toolbox for Java - Open Source Software, JTOpen 7.3, codebase 5770-SS1 V7R1M0.03 2011/01/14 @B5 
. 
. 
. 
as400: Driver AS/400 Toolbox for Java JDBC Driver (27979955) : Using IBM Toolbox for Java JDBC driver implementation. 
as400: Properties (16020374) : metadata source = "0". 
as400: Toolbox for Java - Open Source Software, JTOpen 7.3, codebase 5770-SS1 V7R1M0.03 2011/01/14 @B5 
as400: JDBC Level: 40 
as400: Properties (16020374) : package ccsid = "13488". 
as400: Connection testServer (11463270) : Client CCSID = 13488. 
as400: Connection testServer (11463270) : Setting server NLV = 2912. 
as400: Connection testServer (11463270) : Client functional level = V7R1M01 . 
as400: Connection testServer (11463270) : Data compression = RLE. 
as400: Connection testServer (11463270) : ROWID supported = true. 
as400: Connection testServer (11463270) : True auto-commit supported = true. 
as400: Connection testServer (11463270) : 128 byte column names supported = true. 
as400: Connection testServer (11463270) : Maximum decimal precision = 31. 
as400: Connection testServer (11463270) : Maximum decimal scale = 31. 
as400: Connection testServer (11463270) : Minimum divide scale = 0. 
as400: Connection testServer (11463270) : Translate hex = character. 
as400: Connection testServer (11463270) : query optimize goal = 0. 
as400: Connection testServer (11463270) : query storage limit = -1. 
as400: Connection testServer (11463270) : Using extended datastreams. 
as400: Connection testServer (11463270) : JDBC driver major version = 9. 
as400: Connection testServer (11463270) : IBM i VRM = V6R1M0. 
as400: Connection testServer (11463270) : Server CCSID = 870. 
as400: Connection testServer (11463270) : Server functional level = V6R1M00014 (14). 
as400: Connection testServer (11463270) : Server job identifier = 072485/QUSER/QZDASOINIT. 
as400: Properties (16020374) : decimal separator = ".". 
as400: Properties (16020374) : date format = "dmy". 
as400: Properties (16020374) : date separator = "/". 
as400: Properties (16020374) : time format = "hms". 
as400: Properties (16020374) : time separator = ":". 
as400: Connection S65AB7B0 (11463270) open. 
as400: Connection S65AB7B0 (11463270) : Auto commit = "true". 
as400: Connection S65AB7B0 (11463270) : Read only = "false". 
as400: Connection S65AB7B0 (11463270) : Transaction isolation = "1". 
as400: Connection S65AB7B0 (11463270) : Auto commit = "false". 
as400: PreparedStatement STMT0001 (15696851) open. Parent: Connection S65AB7B0 (11463270) . 
as400: PreparedStatement STMT0001 (15696851) : Escape processing = "true". 
as400: PreparedStatement STMT0001 (15696851) : Fetch direction = "1000". 
as400: PreparedStatement STMT0001 (15696851) : Fetch size = "0". 
as400: PreparedStatement STMT0001 (15696851) : Max field size = "0". 
as400: PreparedStatement STMT0001 (15696851) : Max rows = "0". 
as400: PreparedStatement STMT0001 (15696851) : Query timeout = "0". 
as400: PreparedStatement STMT0001 (15696851) : Result set concurrency = "1007". 
as400: PreparedStatement STMT0001 (15696851) : Result set holdability = "1". 
as400: PreparedStatement STMT0001 (15696851) : Result set type = "1003". 
as400: PreparedStatement STMT0001 (15696851) : Behavior Override = "0". 
as400: PreparedStatement STMT0001 (15696851) : Data to correlate statement with cursor Cursor CRSR0001 (12039161) . 
as400: PreparedStatement STMT0001 (15696851) : Preparing [SELECT *SQLGENCOLUMNS FROM NEW TABLE(insert into test_v6r1 (id, value) values (?, ?))]. 
as400: PreparedStatement STMT0001 (15696851) : Prepared STMT0001*, SQL Statement -->[SELECT *SQLGENCOLUMNS FROM NEW TABLE(insert into test_v6r1 (id, value) values (?, ?))]. 
as400: PreparedStatement STMT0001 (15696851) : setInt(). 
as400: PreparedStatement STMT0001 (15696851) : parameter index: 1 value: 1. 
as400: PreparedStatement STMT0001 (15696851) : setString(). 
as400: PreparedStatement STMT0001 (15696851) : parameter index: 2 value: Test: 2011-04-27 16:39:53.839. 
as400: PreparedStatement STMT0001 (15696851) : Descriptor 1 created or changed. 
as400: Cursor CRSR0001 (12039161) open. 
as400: ResultSet CRSR0001 (13725633) open. Parent: PreparedStatement STMT0001 (15696851) . 
as400: ResultSet CRSR0001 (13725633) : Conncurrency = "1007". 
as400: ResultSet CRSR0001 (13725633) : Fetch direction = "1000". 
as400: ResultSet CRSR0001 (13725633) : Fetch size = "0". 
as400: ResultSet CRSR0001 (13725633) : Max rows = "0". 
as400: ResultSet CRSR0001 (13725633) : Type = "1004". 
as400: PreparedStatement STMT0001 (15696851) : Executed STMT0001*, SQL Statement --> [SELECT *SQLGENCOLUMNS FROM NEW TABLE(insert into test_v6r1 (id, value) values (?, ?))]. 
as400: PreparedStatement STMT0001 (15696851) : Update count = 0. 
as400: PreparedStatement STMT0001 (15696851) : Result set = false. 
as400: PreparedStatement STMT0001 (15696851) : Number of result sets = 0. 
as400: PreparedStatement STMT0001 (15696851) : Row count estimate = -1. 
as400: Connection S65AB7B0 (11463270) : Fetching a block of data from the system. 
PS1 - SQL insert affected 0 rows and returned 0 keys 
PS1 - getUpdateCount()=0 
as400: PreparedStatement STMT0002 (540190) open. Parent: Connection S65AB7B0 (11463270) . 
as400: PreparedStatement STMT0002 (540190) : Escape processing = "true". 
as400: PreparedStatement STMT0002 (540190) : Fetch direction = "1000". 
as400: PreparedStatement STMT0002 (540190) : Fetch size = "0". 
as400: PreparedStatement STMT0002 (540190) : Max field size = "0". 
as400: PreparedStatement STMT0002 (540190) : Max rows = "0". 
as400: PreparedStatement STMT0002 (540190) : Query timeout = "0". 
as400: PreparedStatement STMT0002 (540190) : Result set concurrency = "1007". 
as400: PreparedStatement STMT0002 (540190) : Result set holdability = "1". 
as400: PreparedStatement STMT0002 (540190) : Result set type = "1003". 
as400: PreparedStatement STMT0002 (540190) : Behavior Override = "0". 
as400: PreparedStatement STMT0002 (540190) : Data to correlate statement with cursor Cursor CRSR0002 (19287723) . 
as400: PreparedStatement STMT0002 (540190) : Preparing [insert into test_v6r1 (id, value) values (?, ?)]. 
as400: PreparedStatement STMT0002 (540190) : Prepared STMT0002*, SQL Statement -->[insert into test_v6r1 (id, value) values (?, ?)]. 
as400: PreparedStatement STMT0002 (540190) : setInt(). 
as400: PreparedStatement STMT0002 (540190) : parameter index: 1 value: 2. 
as400: PreparedStatement STMT0002 (540190) : setString(). 
as400: PreparedStatement STMT0002 (540190) : parameter index: 2 value: Test: 2011-04-27 16:39:53.839. 
as400: PreparedStatement STMT0002 (540190) : Descriptor 2 created or changed. 
as400: PreparedStatement STMT0002 (540190) : Executed STMT0002*, SQL Statement --> [insert into test_v6r1 (id, value) values (?, ?)]. 
as400: PreparedStatement STMT0002 (540190) : Update count = 1. 
as400: PreparedStatement STMT0002 (540190) : Result set = false. 
as400: PreparedStatement STMT0002 (540190) : Number of result sets = 0. 
as400: PreparedStatement STMT0002 (540190) : Row count estimate = -1. 
PS2 - SQL insert affected 1 rows and returned 0 keys 
PS2 - getUpdateCount()=1 
as400: Connection S65AB7B0 (11463270) : Testing to see if cursors should be held.. 
as400: Connection S65AB7B0 (11463270) : Transaction commit. 
as400: Cursor CRSR0001 (12039161) : Closing with reuse flag = 240. 
as400: Cursor CRSR0001 (12039161) closed. 
as400: ResultSet CRSR0001 (13725633) closed. 
as400: PreparedStatement STMT0001 (15696851) closed. 
as400: PreparedStatement STMT0002 (540190) closed. 
as400: Connection S65AB7B0 (11463270) closed.

當使用標誌RETURN_GENERATED_KEYS應該被認爲是準備準備語句的方式，最顯著的事情。

在V6R1的情況下，像這樣的語句：

SELECT *SQLGENCOLUMNS FROM NEW TABLE(insert into test_v6r1 (id, value) values (?, ?))

在V5R4的情況下，它通常準備：

的Javadoc PreparedStatement.executeUpdate()

insert into test_v6r1 (id, value) values (?, ?)

insert into test_v6r1 (id, value) values (?, ?)

爲內部準備說：

執行在此 PreparedStatement對象的SQL語句，它必須是一個SQL數據操縱語言（DML）語句，如INSERT， UPDATE或DELETE;或者不返回任何內容的SQL語句，例如DDL 語句。

返回：：（1）的行數SQL數據操作語言（DML）陳述或者（2）0 SQL語句表示不返回任何

和執行的語句顯然是一個DML語句。 我懷疑這是JTOpen/JT400中的一個錯誤。我試過6.1和7.3，它是一樣的。

來源

2011-04-27 15:27:36 davorp

根據JTOpen的Javadocs，AS400JDBCPreparedStatement類說明如下：「返回：INSERT，UPDATE或DELETE的行數，或者0代表不返回任何內容的SQL語句。「在這裏看到Javadoc：http://publib.boulder.ibm.com/infocenter/iseries/v7r1m0/index.jsp?topic=/rzahh/javadoc/index.html 對我來說這就是說select語句包裝其他語句並因此作爲一個選擇它將返回零行。 – 2011-04-27 20:41:40

請注意，「從插入中選擇」表達式可能會由於臨時表的創建而產生巨大的性能開銷......至少在v6r1中，這實際上消除了減少往返數的好處。 – 2013-09-10 17:10:58

如果它是有幫助的，我發現這個其他職位StackOverflow上非常相似，你正在嘗試做的： How to get the rows affected by an update

來源

2011-04-27 20:45:32

獲取通過JBDC在IBM DB2 V6R1（AS400）上插入的行數

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