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How do you debug MySQL stored procedures?
...current process for debugging stored procedures is very simple. I create a table called "debug" where I insert variable values from the stored procedure as it runs. This allows me to see the value of any variable at a given point in the script, but is there a better way to debug MySQL stored procedu...
Cloning a MySQL database on the same MySql instance
... you... There's no way to do this within MySQL afaik (except by hand, one table / view at a time)
– Greg
Mar 23 '09 at 21:50
42
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Why do I get a “Null value was assigned to a property of primitive type setter of” error message whe
...he solution is replace primitive type with primitive wrapper class in your tableName.java file.
Such as:
@Column(nullable=true, name="client_os_id")
private Integer client_os_id;
public int getClient_os_id() {
return client_os_id;
}
public void setClient_os_id(int clientOsId) {
client_os_...
Entity Framework: One Database, Multiple DbContexts. Is this a bad idea? [closed]
...ngle context per app can be expensive if the application has many entities/tables. Thus depending on the schema, it might also make sense to have multiple contexts.
– DarthVader
May 13 '13 at 7:04
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Reshaping data.frame from wide to long format
I have some trouble to convert my data.frame from a wide table to a long table.
At the moment it looks like this:
9 Answe...
select * vs select column
...
It always pulls a tuple (except in cases where the table has been vertically segmented - broken up into columns pieces), so, to answer the question you asked, it doesn't matter from a performance perspective. However, for many other reasons, (below) you should always select ...
Best dynamic JavaScript/JQuery Grid [closed]
...
Free:
Gijgo Grid
Backgrid.js
Flexigrid
jqGridView
Ingrid
SlickGrid
DataTables
Shield UI Lite Grid
Paid:
Fancy Grid
jQuery Grid
jqxGrid
Shield UI Grid
The best entries in my opinion are Flexigrid and jQuery Grid.
sh...
What's the difference between @JoinColumn and mappedBy when using a JPA @OneToMany association
...t this entity is the owner of the relationship (that is: the corresponding table has a column with a foreign key to the referenced table), whereas the attribute mappedBy indicates that the entity in this side is the inverse of the relationship, and the owner resides in the "other" entity. This also ...
How can I rename a field for all documents in MongoDB?
...
For some reason, this didn't work for me when I used the "table.field" : "table.field" syntax. It did work when I just used the "field" : "field" syntax.
– Ben
Sep 2 '15 at 0:21
...
Database Design for Tagging
...e fine and scale out assuming the right b-tree indexes exist on the middle table
– Adam Musch
Feb 24 '10 at 16:41
...