在我们的项目中，我创建了一些类似以下的全局临时表：
CREATE GLOBAL TEMPORARY TABLE v2dtemp (
id NUMBER,
GOOD_TYPE_GROUP VARCHAR2(250 BYTE),
GOOD_CODE VARCHAR2(50 BYTE),
GOOD_TITLE VARCHAR2(250 BYTE)
)
ON COMMIT PRESERVE ROWS;
但是问题出现在我想删除这个表时。 Oracle不允许我删除这个表，它会显示：
ORA-14452: attempt to create, alter or drop an index on temporary table already in use
我必须在某个流程中使用这个表，但它可能会根据其他报告而改变。因此，我应该总是删除表，然后重新创建带有我需要的字段。
出于业务原因，我必须使用临时表，无法使用常规表或其他对象。我尝试了提交时删除行，但当我调用我的过程来使用此表中的数据时，表中就没有行，它们已被删除。
非常感谢任何帮助，提前致谢。
///编辑
public void saveJSONBatchOpenJobs(final JSONArray array, MtdReport report) {
dropAndCreateTable();
String sql = "INSERT INTO v2d_temp " +
"(ID, KARPARDAZ, GOOD_TYPE_GROUP, GOOD_CODE, GOOD_TITLE, COUNT, "
+ "FACTOR_COUNT, GHABZ_COUNT, DEAL_NO, DEAL_DATE, REQUEST_NO, REQUEST_DATE, "
+ "REQUEST_CLIENT, STATUS, TYPE, MTDREPORT_ID, GEN_SECURITY_DATA_ID) " +
"VALUES (MTD_KARPARDAZ_OPEN_JOBS_SEQ.nextval,?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)";
getJdbcTemplate().batchUpdate(sql, new BatchPreparedStatementSetter() {
@Override
public void setValues(PreparedStatement ps, int i) throws SQLException {
JSONArray values = array.getJSONArray(i);
if(!values.get(0).equals("null"))
ps.setString(1, values.get(0).toString());
else
ps.setNull(1, Types.VARCHAR);
if(!values.get(1).equals("null"))
ps.setString(2, values.get(1).toString());
else
ps.setNull(2, Types.VARCHAR);
if(!values.get(2).equals("null"))
ps.setString(3, values.get(2).toString());
else
ps.setNull(3, Types.VARCHAR);
if(!values.get(3).equals("null"))
ps.setString(4, values.get(3).toString());
else
ps.setNull(4, Types.VARCHAR);
if(!values.get(4).equals("null"))
ps.setBigDecimal(5, new BigDecimal(values.get(4).toString()));
else
ps.setNull(5, Types.NUMERIC);
if(!values.get(5).equals("null"))
ps.setBigDecimal(6, new BigDecimal(values.get(5).toString()));
else
ps.setNull(6, Types.NUMERIC);
if(!values.get(6).equals("null"))
ps.setBigDecimal(7, new BigDecimal(values.get(6).toString()));
else
ps.setNull(7, Types.NUMERIC);
if(!values.get(7).equals("null"))
ps.setString(8, values.get(7).toString());
else
ps.setNull(8, Types.VARCHAR);
if(!values.get(8).equals("null"))
ps.setDate(9, new Date(new Timestamp(values.getLong(8)).getDateTime()));
else
ps.setNull(9, Types.DATE);
if(!values.get(9).equals("null"))
ps.setString(10, values.get(9).toString());
else
ps.setNull(10, Types.VARCHAR);
if(!values.get(10).equals("null"))
ps.setDate(11, new Date(new Timestamp(values.getLong(8)).getDateTime()));
else
ps.setNull(11, Types.DATE);
if(!values.get(11).equals("null"))
ps.setString(12, values.get(11).toString());
else
ps.setNull(12, Types.VARCHAR);
if(!values.get(12).equals("null"))
ps.setString(13, values.get(12).toString());
else
ps.setNull(13, Types.VARCHAR);
if(!values.get(13).equals("null"))
ps.setString(14, values.get(13).toString());
else
ps.setNull(14, Types.VARCHAR);
if(!values.get(14).equals("null"))
ps.setLong(15, new Long(values.get(14).toString()));
else
ps.setNull(15, Types.NUMERIC);
if(!values.get(15).equals("null"))
ps.setLong(16, new Long(values.get(15).toString()));
else
ps.setNull(16, Types.NUMERIC);
}
@Override
public int getBatchSize() {
return array.size();
}
});
String bulkInsert = "declare "
+ "type array is table of d2v_temp%rowtype;"
+ "t1 array;"
+ "begin "
+ "select * bulk collect into t1 from d2v_temp;"
+ "forall i in t1.first..t1.last "
+ "insert into vertical_design values t1(i);"
+ "end;";
executeSQL(bulkInsert);
}
private void dropAndCreateTable() {
String dropSql = "declare c int;"
+ "begin "
+ "select count(*) into c from user_tables where table_name = upper('v2d_temp');"
+ "if c = 1 then "
+ "truncate table v2d_temp"
+ "drop table v2d_temp;"
+ " end if;"
+ "end;";
executeSQL(dropSql);
String createSql = "CREATE GLOBAL TEMPORARY TABLE v2d_temp (\n"
+ "DEAL_ID NUMBER,\n"
+ "id NUMBER,\n"
+ "karpardaz VARCHAR2(350),\n"
+ "GOOD_TYPE_GROUP VARCHAR2(250 BYTE),\n"
+ "GOOD_CODE VARCHAR2(50 BYTE),\n"
+ "GOOD_TITLE VARCHAR2(250 BYTE),\n"
+ "COUNT NUMBER,\n"
+ "FACTOR_COUNT NUMBER,\n"
+ "GHABZ_COUNT NUMBER,\n"
+ "DEAL_NO VARCHAR2(50 BYTE),\n"
+ "DEAL_DATE DATE,\n"
+ "REQUEST_NO VARCHAR2(50 BYTE),\n"
+ "REQUEST_DATE DATE,\n"
+ "REQUEST_CLIENT VARCHAR2(250 BYTE),\n"
+ "STATUS VARCHAR2(250 BYTE),\n"
+ "TYPE VARCHAR2(250 BYTE),\n"
+ "GEN_SECURITY_DATA_ID NUMBER(10),\n"
+ "MTDREPORT_ID NUMBER\n"
+ ")\n"
+ "ON COMMIT PRESERVE ROWS";
executeSQL(createSql);
}
private void executeSQL(String sql) {
Connection con = null;
try {
con = getConnection();
Statement st = con.createStatement();
st.execute(sql);
} catch (SQLException e) {
e.printStackTrace();
} finally {
if(con != null) {
try {
con.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
}
}