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Hibernate: “Field 'id' doesn't have a default value”
...ns but again got same error what mistake i do i don't know......I am using mysql data base.
– Krunal Patel
Feb 10 '15 at 8:46
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What is the difference/usage of homebrew, macports or other package installation tools? [closed]
... gcc42 llvm-gcc42 mp-gcc48 none
llvm none mp-llvm-3.3 none
mysql mysql56 mysql56 none
php php55 php55 php56 none
postgresql postgresql94 postgresql93 postgresql94 none
python none python24 python25-apple python26-apple python27 python27-app...
PDO's query vs execute
... if you use a prepare on the : calories is that kind of the equivalent of mysql_real_escape_string() to stop injections or do you need more than just $sth->bindParam(':calories', $calories); to heighten security?
– Dan
Jan 5 '12 at 12:52
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WHERE vs HAVING
...elf (for example select 1 as "number" ) after HAVING and not WHERE in MySQL?
7 Answers
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SQL MAX of multiple columns?
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for those who came here looking for a MySQL way, take a look to @bajafresh4life reply: stackoverflow.com/a/331873/1412157
– LucaM
May 22 '15 at 13:23
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Counting DISTINCT over multiple columns
...INCT concat(DocumentId, DocumentSessionId)) FROM DocumentOutputItems;
In MySQL you can do the same thing without the concatenation step as follows:
SELECT count(DISTINCT DocumentId, DocumentSessionId) FROM DocumentOutputItems;
This feature is mentioned in the MySQL documentation:
http://dev.my...
What is the difference between a schema and a table and a database?
...ction of tables. A DBMS (Database Management System) is the software (like MySQL, SQL Server, Oracle, etc) that manages and runs a database.
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How to drop all user tables?
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Being new to Oracle and I'm more familiar with MySQL; reseting a DB seems difficult. IN MySQL a USER is separate to a DATABASE. DROP USER username CASCADE worked for me. But in MySQL all I would have to do is DROP DATABASE and create a new one
– gawp...
搭建高可用mongodb集群（一）——配置mongodb - 大数据 & AI - 清泛网 - 专...
...量，可以通过廉价服务器存储大量的数据，轻松摆脱传统mysql单表存储量级限制。
高扩展性，Nosql去掉了关系数据库的关系型特性，很容易横向扩展，摆脱了以往老是纵向扩展的诟病。
高性能，Nosql通过简单的key-value方式获取...
How do I UPDATE from a SELECT in SQL Server?
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@CharlesWood yeah. I have the same question in MySQL. It would be great if someone knows how to implement it to MySQL and share with everyone. I'm sure lots of people are looking for a MySQL version solution
– Roger Ray
Nov 27 '13 at...