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Map enum in JPA with fixed values?
...t option (this is a basic implementation, tweak it as required):
@Entity
@Table(name = "AUTHORITY_")
public class Authority implements Serializable {
public enum Right {
READ(100), WRITE(200), EDITOR (300);
private int value;
Right(int value) { this.value = value; } ...
SQL error “ORA-01722: invalid number”
...er, and the string cannot be converted into a number.
Without seeing your table definition, it looks like you're trying to convert the numeric sequence at the end of your values list to a number, and the spaces that delimit it are throwing this error. But based on the information you've given us, ...
How to prevent gcc optimizing some statements in C?
In order to make a page dirty (switching on the dirty bit in the page table entry), I touch the first bytes of the page like this:
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How to DROP multiple columns with a single ALTER TABLE statement in SQL Server?
... like to write a single SQL command to drop multiple columns from a single table in one ALTER TABLE statement.
11 Answers...
How to limit the maximum value of a numeric field in a Django model?
...t the validation in a form. The question of which range of numbers is acceptable is as much a part of the model as is the question of which kind of number is acceptable. I don't want to have to tell every form through which the model is editable, just which range of numbers to accept. This would vi...
Select all columns except one in MySQL?
...g to use a select statement to get all of the columns from a certain MySQL table except one. Is there a simple way to do this?
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SQL statement to select all rows from previous day
...for a good SQL Statement to select all rows from the previous day from one table. The table holds one datetime column. I am using SQL Server 2005.
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Laravel Eloquent groupBy() AND also return count of each group
I have a table that contains, amongst other columns, a column of browser versions. And I simply want to know from the record-set, how many of each type of browser there are. So, I need to end up with something like this: Total Records: 10; Internet Explorer 8: 2; Chrome 25: 4; Firefox 20: 4. (All ad...
Check if value exists in Postgres array
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how can I search for a column from another table to have a value in the array? e.g. select * from beers where style_id in (select preferences from users where id=1) limit 1; style_id is an integer data type; preferences is integer[] I get this error ERROR: operato...
error, string or binary data would be truncated when trying to insert
...ink to yourself... The field is NOT big enough to hold my data.
Check the table structure for the customers table. I think you'll find that the length of one or more fields is NOT big enough to hold the data you are trying to insert. For example, if the Phone field is a varchar(8) field, and you ...