原创 ORA-02049: timeout: distributed transaction waiting for lock
select 'alter system kill session ''' || sid || ',' || serial# || ''';' from v$session where username = 'XXX';
2020-06-16 15:51:44
原创 Oracle Create Sequence
CREATE SEQUENCE customers_seq START WITH 1000 INCREMENT BY 1 NOCACHE NOCYCLE; CREATE OR REPLACE TRIGGER J
2020-06-16 15:51:33
原创 ORA-00054: resource busy and acquire with NOWAIT specified
1. select object_name, s.sid, s.serial#, p.spid from v$locked_object l, dba_objects o, v$session s, v$process p wh
2020-06-16 15:51:33
原创 ATOM -- A hackable text editor for the 21st Century
今天安裝Atom試了下 安裝了四個插件 打開log文件的時候，很多飄紅的下劃線，是Atom進行spell checking的原因： search “spell-check”disable http://superuser
2020-06-16 15:51:33
原创 Apache Commons JEXL
Apache Commons JEXL JEXL is a library intended to facilitate the implementation of dynamic and scripting features i
2020-06-16 15:51:33
原创 SQL Server delete all tables
/* Drop all non-system stored procs */ DECLARE @name VARCHAR(128) DECLARE @SQL VARCHAR(254) SELECT @name = (SELECT
2020-06-16 15:51:33
原创 Oracle data types and Microsoft SQL Server data types
https://msdn.microsoft.com/en-us/library/ms151817(v=sql.105).aspx
2020-06-16 15:51:33
原创 /bin/bash^M:
1. :set ff 如果是doc 設置成unix :set fileformat=unix :wq 2.如果fileformat是unix還報錯 sed -i 's/\r//' filename http://stac
2020-02-20 15:34:13
原创 Apache Camel
Apache Camel ™ is a versatile open-source integration framework based on known Enterprise Integration Patterns. Apa
2020-02-20 15:34:12
原创 Jackson
public class MyJackson { public static void main(String[] args) throws IOException { jsonToUser();
2020-02-20 15:34:12
原创 JAXB
1. 根據xsd生成java類 xsd文件 <?xml version="1.0" encoding="UTF-8"?> <xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchem
2020-02-20 15:34:12
原创 ORA-30649: missing DIRECTORY keyword
alter table TABLENAME add FIELDNAME char(1) not null default '0' ; it was throwing an error: 'ORA-30649:missing
2020-02-20 15:34:12
原创 Apache Commons CLI
The Apache Commons CLI library provides an API for parsing command line options passed to programs. It's also able
2020-02-20 15:34:12
原创 mvn compile error : try-with-resources is not supported in -source 1.5
add compiler to pom.xml <properties> <maven.compiler.source>1.7</maven.compiler.source> <maven.compiler.tar
2020-02-20 15:34:12
原创 Apache Commons Configuration
The Commons Configuration software library provides a generic configuration interface which enables a Java applicat
2020-02-20 15:34:12