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JPA and Hibernate - Criteria vs. JPQL or HQL
...ied cache for any DB. This leads to an overhead of compiling the generated SQL, taking more time to execute.
Regarding fetching strategies [http://www.hibernate.org/315.html]
Criteria respects the laziness settings in your mappings and guarantees that what you want loaded is loaded. This me...
Cannot issue data manipulation statements with executeQuery()
In MySQL I have two tables, tableA and tableB . I am trying to execute two queries:
10 Answers
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Get current batchfile directory
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Look, I do not need to run stm.sql in D:\Dir1\Dir2\stm.sql. I need mysql.exe -u root -p mysql < %cd%\stm.sql to execute that stm.sql commands.
– Hamed Kamrava
Jun 12 '13 at 11:32
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Can I create a named default constraint in an add column statement in SQL Server?
In SQL Server, I have a new column on a table:
4 Answers
4
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How to check if a function exists on a SQL database
...lar function. This link tells you different parameters values you can pass sqlhints.com/tag/how-to-check-if-function-exists. I keep using 'FN' to check for existing Table value function, and it does not work. I have to use 'TF'
– user12345
Dec 29 '17 at 17:33
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MySQL check if a table exists without throwing an exception
What is the best way to check if a table exists in MySQL (preferably via PDO in PHP) without throwing an exception. I do not feel like parsing the results of "SHOW TABLES LIKE" et cetera. There must be some sort of boolean query?
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Adding a new SQL column with a default value
I am looking for the syntax to add a column to a MySQL database with a default value of 0
10 Answers
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Format of the initialization string does not conform to specification starting at index 0
...hich has a list of commonly used ones.
Commonly used Connection Strings:
SQL Server 2012
Standard Security
Server=myServerAddress;Database=myDataBase;User Id=myUsername;Password=myPassword;
Trusted Connection
Server=myServerAddress;Database=myDataBase;Trusted_Connection=True;
Connection to ...
When to use a View instead of a Table?
... @ouonomos: A normal view doesn't contain any data. It is just a stored SQL statement, i.e. a view on the underlying data. Some databases (e.g. Oracle, PostgreSQL) support materialized views, which store the "view" temporarily in another table for faster access. This is done to speed up read acce...
Set a DateTime database field to “Now”
In VB.net code, I create requests with SQL parameters. It I set a DateTime parameter to the value DateTime.Now, what will my request look like ?
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