oracle 动态SQL 注意细节 ORA-00911: 无效字符

最新推荐文章于 2021-04-03 05:21:33 发布

原创最新推荐文章于 2021-04-03 05:21:33 发布 · 3.6k 阅读

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#sql #oracle #null #table #date #insert

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本文深入探讨了SQL中用于插入数据、数据筛选及聚合的语法规则，详细介绍了如何通过动态参数执行SQL查询，实现对特定时间段内数据的高效处理。文章还特别强调了SQL表达式的正确书写习惯，包括日期格式转换、空值处理等关键点，旨在为数据分析师和开发者提供实用的数据处理技巧。

lv_sql:='
insert into ETL_SUCESS_AMOUNT
select SEQ_OS_ETL_AMOUNTID.NEXTVAL AS AMOUNTID,1,AMOUNT_DATA,AMOUNT_HOUR,
serviceid,portalid,mouduleid,actionid,RESERVE1_ID,RESERVE2_ID,RESERVE3_ID,
RESERVE4_ID,AMOUNT,AMOUNT_TIME
from
(
    select
    trunc(INSERTTIME) AS AMOUNT_DATA,
    TO_CHAR(INSERTTIME,''HH24'') AS AMOUNT_HOUR,
    serviceid,portalid,mouduleid,actionid,
    NULL AS RESERVE1_ID,
    NULL AS RESERVE2_ID,
    NULL AS RESERVE3_ID,
    NULL AS RESERVE4_ID,
    count(*) AS AMOUNT,
    SYSDATE AS AMOUNT_TIME
    from '||lv_table_name||'
    where inserttime > to_date(:1,''yyyy-mm-dd hh24:mi:ss'')
    and inserttime < to_date(:2,''yyyy-mm-dd hh24:mi:ss'')
    group by trunc(INSERTTIME),TO_CHAR(INSERTTIME,''HH24''),serviceid,mouduleid,portalid,actionid
)';
execute immediate lv_sql USING p_sdate,p_edate;