Question

我正在尝试在PL / SQL

中创建一个表

我怎么能做到这一点？

继续

错误报告：

ORA-00933：“SQL命令未正确结束”

这是我错误的代码

DECLARE
  station_id_ms1  NUMBER :=10347;
  realtime_start  DATE   :=to_date('2012-01-01 00:00:00','YYYY-DD-MM HH24:MI:SS');
  realtime_end    DATE   :=to_date('2012-07-01 00:00:00','YYYY-DD-MM HH24:MI:SS');
BEGIN
  EXECUTE IMMEDIATE ('
  CREATE TABLE new_table_name
  AS
  SELECT
  ((realtime - to_date(''01-JAN-1970'',''DD-MON-YYYY'')) * (86400)) AS realtime_ms1,
  magnetic_ms_id,
  ADC_value_pp_2_mgntc_fld_amp(ch2_value,ch2_gain_value,magnetic_ms_id,2) AS B_x_ms1,
  ADC_value_pp_2_mgntc_fld_amp(ch1_value,ch1_gain_value,magnetic_ms_id,1) AS B_y_ms1,
  real_nanosecs2*4/3*360/20e6 AS phase_x_ms1,
  real_nanosecs1*4/3*360/20e6 AS phase_y_ms1
  FROM
      raw_mag
  WHERE
    magnetic_ms_id    = '||station_id_ms1||'
  AND realtime        > '||realtime_start||'
  AND realtime        < '||realtime_end||'
  AND ch1_tune_value  = 0
  AND realtime        < pkg_timezone.change_timezone(gettime,''CET'',''UTC'')
  ');  
END;

Answer 1

您应该在中立即执行的plsql-string中执行 char-to-date 转换。

您宣布的日期为＆＃34; back-cast＆＃34;连接中的varchar2和＆＃34;重新播放＆＃34;再次进入日期以执行create table语句。并且＆＃34;各种各样的事情＆＃34;可以在这两个演员阵容中发生，因此您希望确保在演员表到日期时如何解释字符串的解释。

DECLARE station_id_ms1 NUMBER :=10347; realtime_start VARCHAR2(100) :='2012-01-01 00:00:00'; realtime_end VARCHAR2(100) :='2012-07-01 00:00:00'; BEGIN EXECUTE IMMEDIATE (' CREATE TABLE new_table_name AS SELECT ((realtime - to_date(''01-JAN-1970'',''DD-MON-YYYY'')) * (86400)) AS realtime_ms1, magnetic_ms_id, ADC_value_pp_2_mgntc_fld_amp(ch2_value,ch2_gain_value,magnetic_ms_id,2) AS B_x_ms1, ADC_value_pp_2_mgntc_fld_amp(ch1_value,ch1_gain_value,magnetic_ms_id,1) AS B_y_ms1, real_nanosecs2*4/3*360/20e6 AS phase_x_ms1, real_nanosecs1*4/3*360/20e6 AS phase_y_ms1 FROM raw_mag WHERE magnetic_ms_id = '||station_id_ms1||' AND realtime > to_date(''' || realtime_start || ''', ''YYYY-DD-MM HH24:MI:SS'') AND realtime < to_date(''' || realtime_end || ''', ''YYYY-DD-MM HH24:MI:SS'') AND ch1_tune_value = 0 AND realtime < pkg_timezone.change_timezone(gettime,''CET'',''UTC'') '); END;

Answer 2

我会对station_id_ms1，realtime_start，realtime_end使用绑定：

EXECUTE IMMEDIATE '
 ...
 WHERE
 magnetic_ms_id    = :station_id_ms1
  AND realtime        > :realtime_start
  AND realtime        < :realtime_end
 ...
 ' USING IN station_id_ms1, realtime_start, realtime_end

在PL / SQL中创建表？

2 个答案: