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Tag: java

CSV to MySQl Import

i need to insert csv into mysql database in proper column. let say csv has header and then data A B C and Mysql has table with column C A B i need to know best way to insert csv data to mysql table Answer I believe you can use the following syntax for mysql: So you can build up

Using TIMESTAMPDIFF with JPA criteria query and hibernate as the provider

I have a data table with columns setup and release, both of which hold timestamps. My goal is to create an equivalent of the SQL query below using CriteriaQuery. SQL Query:SELECT TIMESTAMPDIFF(SECOND, setup, released)) as sum_duration FROM calls The CriteriaBuilder#diff() function clearly does not work as it requires parameters that are Numbers, so I tried using CriteriaBuilder#function: However, when I

How to read sql query from a txt-file in Java

I am having some some class that is sending queries to data base. Everything was working fine when the query was in the code, but as it’s pretty big, I decided to put it in a file and to read it with buffered reader, but it’s not working, I always get this: java.sql.SQLException: ORA-00900: invalid SQL statement Here is my

Why does not Hibernate set @DynamicInsert by default

Could anyone explain to me why Hibernate does not set the @DynamicInsert annotation by default and allow entities to generate an INSERT based on the currently set properties? What’s the reason for not using @DynamicInsert and, therefore, including all entity properties by default? Answer What @jb-nizet said. Also, dynamic-insert=”true” is a bad idea in my book. Skipping null fields from

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