大约有 45,000 项符合查询结果(耗时:0.0150秒) [XML]

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How to get current date & time in MySQL?

... The correct answer is SYSDATE(). INSERT INTO servers ( server_name, online_status, exchange, disk_space, network_shares, date_time ) VALUES ( 'm1', 'ONLINE', 'ONLINE', '100GB', 'ONLINE', SYSDATE() ); We can change this behavior and ma...
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创建增量同步Oracle物化视图问题 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术

...“create materialized view mv_tablename refresh fast on demand start with sysdate next sysdate+1/288 as select * from T_tablename@dblink_name;”。 现在,数据库A上此表的主键约束因主键字段值重复而被disable了,在第三个数据库C上新建这个物化视图却失败,...
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What is the dual table in Oracle?

...nt the results of some system function in a select statement: e.g. select sysdate from dual; See http://www.adp-gmbh.ch/ora/misc/dual.html share | improve this answer | fol...
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Oracle Differences between NVL and Coalesce

...pe of the first parameter, so the following does not error select nvl('a',sysdate) from dual; COALESCE expects consistent datatypes. select coalesce('a',sysdate) from dual; will throw a 'inconsistent datatype error' sh...
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Can we have multiple “WITH AS” in single sql - Oracle SQL

... Yes you can... WITH SET1 AS (SELECT SYSDATE FROM DUAL), -- SET1 initialised SET2 AS (SELECT * FROM SET1) -- SET1 accessed SELECT * FROM SET2; -- SET2 projected 10/29/2013 10:43:26 AM Follow the order in which it should be ini...
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Ora-00257 错误处理一列 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术

...,定时删除日志,如下: DELETE ARCHIVELOG ALL COMPLETED BEFORE 'SYSDATE-7'; //删除七天前的归档 DELETE ARCHIVELOG FROM TIME 'SYSDATE-7'; //删除七天到现在的归档 Ora-00257 错误
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Add 2 hours to current time in MySQL?

...This will also work SELECT NAME FROM GEO_LOCATION WHERE MODIFY_ON BETWEEN SYSDATE() - INTERVAL 2 HOUR AND SYSDATE() share | improve this answer | follow | ...
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How to print SQL statement in codeigniter model

...epting my date format, ive tried every format i think, it will only accept SYSDATE – Technupe May 26 '11 at 17:16  |  show 1 more comment ...
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MySQL Query - Records between Today and Last 30 Days

...te activity and complete activity for previous 30 days use this, since the SYSDATE is variable in a day the previous 30th day will not have the whole data for that day. SELECT DATE_FORMAT(create_date, '%m/%d/%Y') FROM mytable WHERE create_date BETWEEN CURDATE() - INTERVAL 30 DAY AND SYSDATE() ...
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Select count(*) from multiple tables

...hich all accounts can access you can use it for common needs like: "SELECT sysdate FROM dual" – dincerm Mar 3 '09 at 12:47 5 ...