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Case in Select Statement
I have an SQL statement that has a CASE from SELECT and I just can't get it right. Can you guys show me an example of CASE where the cases are the conditions and the results are from the cases. For example:
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Java: Get month Integer from Date
... if you use date.toInstant() and you happen to be working with a java.sql.Date (the child of java.util.Date) then you will get an UnsupportedOperationException. Try new java.sql.Date(src.getTime()).toLocalDate()
– Adam
Feb 24 '17 at 14:15
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Logstash实践: 分布式系统的日志监控 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...日志量的增大，可以增大flush_interval的值以提高文件写入性能。
Indexer的配置文件中，我明确指定了message_format的格式，其中%{host}对应的就是之前手动设置的host元数据。
3.5. 启动Logstash
# 先在Indexer主机上启动
nohup /usr/local/lo...
How can I export the schema of a database in PostgreSQL?
...broke down but fortunately I backed up
the folder C:\Program Files\PostgreSQL.
8 Answers
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Entity Framework: There is already an open DataReader associated with this Command
...lso try to cast the query to ObjectQuery and call ToTraceString to see the SQL command. It is hard to track. I always turn on MARS.
– Ladislav Mrnka
Feb 1 '11 at 22:27
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MySQL “incorrect string value” error when save unicode string in Django
...em for me. The root cause being:
You cannot store 4-byte characters in MySQL with the utf-8 character set.
MySQL has a 3 byte limit on utf-8 characters (yes, it's wack, nicely summed up by a Django developer here)
To solve this you need to:
Change your MySQL database, table and columns to use...
How to get Top 5 records in SqLite?
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but limit dont work in sub query sqlite..whats the alternative
– Nauman Ash
Aug 16 at 11:51
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Rails find record with zero has_many records associated [duplicate]
... @sixty4bit - It works because when you do includes it does a join. In a SQL join, you get all the fields of both tables (in this case cities and photos) for each row unless you change the projection of the query. So, he's using that to his advantage to check whether a required database identifier...
How do I modify fields inside the new PostgreSQL JSON datatype?
With postgresql 9.3 I can SELECT specific fields of a JSON data type, but how do you modify them using UPDATE? I can't find any examples of this in the postgresql documentation, or anywhere online. I have tried the obvious:
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The EXECUTE permission was denied on the object 'xxxxxxx', database 'zzzzzzz', schema 'dbo'
... For some reason this is the only answer that works for me on SQL Server 2012. Giving my user explicit EXECUTE permission does not work. It only works if it inherits the permission through a role.
– Keith
Jan 22 '16 at 14:45
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