age ( timestamp ) → interval从current_date 减去参数(在午夜) age(timestamp '1957-06-13')→ 62 years 6 mons 10 days clock_timestamp ( ) → timestamp with time zone当前日期和时间(在语句执行期间变化) clock_timestamp()→ 2019-12-23 14:39:53.662522-05 current_date→ date当前日期 current...
CREATE TABLE licenses ( purchased DATE, valid INT ); -- Insert an item purchased today, valid 31 days INSERT INTO licenses VALUES (CURRENT_TIMESTAMP, 31); Now to get the expiration date you can use the following queries: SQL Server: -- Get expiration date SELECT DATEADD(day, valid, ...
分区表在实际使用中,一般以时间字段作为分区键。这里为了简化问题,我们假设分区字段类型为timestamp,分区方式为List of values. 表结构如下: 代码语言:sql 复制 CREATETABLEtab(idbigintGENERATED ALWAYSASIDENTITY,tstimestampNOTNULL,datatext)PARTITIONBYLIST((ts::date));CREATETABLEtab_defPARTITIONOFtabDEFAULT; 分...
And to use it in the case of timestamp, do the CASTING and addINTEGERto it to produce the date needed. You can not performADD,MULTIPLY,DIVISION, or any other operators with timestamps. Remember thatDATE/INTEGERSare calculated as the number of days but not in months, years, or other un...
替换:now()::timestamp(0) pgsql:now()默认是时间戳 5.DATE_FORMAT( DATE_SUB( now(), INTERVAL 1 DAY ), '%Y%m%d' ) 替换:to_char( now()+ INTERVAL '1 DAY ', 'yyyyMMdd' ) 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11.
create or replace function add_months(timestamp, int) returns timestamp as $$ declare i interval := ($2 || 'month'); d1 date := date(to_timestamp($1::text,'yyyy-mm') + interval '1 month' - interval '1 day'); d2 date := date($1); res timestamp; begin select case when...
(actualtime=0.008..25415.490rows=30157190loops=1)" Filter: ((NVL(f_qwwvddvvzz, '0'::numeric) > '0'::numeric) AND (f_qdqdqdq <= '2023-03-22 00:00:00'::timestamp without time zone) AND (a_daccoxxz <> '996000000000'::text))"Rows Removed by Filter: 4842810-> Hash (cost=...
Last_SQL_Error_Timestamp: Master_SSL_Crl: Master_SSL_Crlpath: Retrieved_Gtid_Set: Executed_Gtid_Set: Auto_Position: 0 Replicate_Rewrite_DB: Channel_Name: Master_TLS_Version: 1 row in set (0.00 sec) ERROR: No query specified 1.
If you do want to use an interval, the make_interval() function is quite useful for this:select current_date - make_interval(days => lag_days) from the_table; There is however a difference between the two queries: the first one returns a date value, the second one a timestamp value...
FROM "eventLog"<![CDATA[ WHERE start_time < now()::TIMESTAMP + '-${overdueDays} days']]>RETURNING id, start_time, log_detail;</select></mapper> 最重要的就是哪个select方法,很多人就要问了,为什么是delete的语句,你却要用select的标签呢?