從java中禁用觸發器

我不完全確定爲什麼會發生這種情況。當我運行命令：從java中禁用觸發器

ALTER TRIGGER ORIGDV87.UPDATE_TEAM_GROUP_TRIGGER DISABLE/ENABLE

我可以看到它如何更改觸發器。我試圖從Java編程做到這一點：

private void trigger_alter(Connection con, String flag) throws Exception 
{ 
    Query query = new Query(con); 
    String selectSql = "select table_owner, trigger_name from user_triggers"; 
    Query queryTrg = new Query(con); 
    query.executeQuery(selectSql); 
    while(query.next()) { 
     int i = 0; 
     String table_owner = query.getColValue("table_owner"); 
     String trigger_name = query.getColValue("trigger_name"); 
     String triggerSql = "ALTER TRIGGER " + table_owner + "." + trigger_name + " "+ flag ; 
     System.out.println(triggerSql); 
     queryTrg.executeQuery(triggerSql); 
    } 
    log_obj.FmtAndLogMsg("All triggers have been " + flag+ "D"); 
}

我得到這個異常：2013/02/26 10:38:56.795 TableConverter: ERROR main() occurred: java.lang.Exception: Error executing query: ALTER TRIGGER XXXX.UPDATE_TEAM_GROUP_TRIGGER DISABLE error=java.sql.SQLException: ORA-01003: no statement parsed

這是Oracle數據庫，和我想這對Solaris系統。

來源

2013-02-26 roymustang86

更換

queryTrg.executeQuery(triggerSql);

隨着

con.createStatement().execute(triggerSql);

然而，配料了ALTER TRIGGER語句會更好：

private void trigger_alter(Connection con, String flag) throws Exception 
{ 
    Query query = new Query(con); 
    String selectSql = "select table_owner, trigger_name from user_triggers"; 

    Statement trgStmt = con.createStatement(); 

    query.executeQuery(selectSql); 
    while(query.next()) { 
     int i = 0; 
     String table_owner = query.getColValue("table_owner"); 
     String trigger_name = query.getColValue("trigger_name"); 
     String triggerSql = "ALTER TRIGGER " + table_owner + "." + trigger_name + " "+ flag ; 
     System.out.println(triggerSql); 
     trgStmt.addBatch(triggerSql); 
    } 

    trgStmt.executeBatch(); 
    log_obj.FmtAndLogMsg("All triggers have been " + flag+ "D"); 
}

來源

2013-02-26 16:43:22

首先，您正在執行一個executeQuery，該語句不是查詢語句。改爲使用execute。

無論如何，ALTER語句是DDL（數據定義語言）的一部分（SQL用於查詢，DML-數據操作語言 - 用於插入/更新/刪除）。我不確定JDBC中支持DDL有多好。

來源

2013-02-26 16:41:05 SJuan76

從java中禁用觸發器

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