大约有 3,552 项符合查询结果（耗时：0.0168秒） [XML]
MySQL root password change
I have been trying to reset my MySQL root password. I have run the mysqld_safe --skip-grant-tables, updated the root password, and checked the user table to make sure it is there. Once restarting the mysql daemon I tried logging in with the new root password that I just set and still get Access de...
Altering a column: null to not null
...
Its strange the MS SQL Management Studio does not allow that option, it brags about "Dropping table ..."
– Sebastian
May 2 '13 at 11:25
...
Is there a query language for JSON?
Is there a (roughly) SQL or XQuery-like language for querying JSON?
22 Answers
22
...
MySQL, update multiple tables with one query
...
If I want to include "LIMIT" to the SQL Query, do I have to say LIMIT 1 or LIMIT 2?
– Bluedayz
Aug 25 '14 at 16:31
2
...
How to dynamically compose an OR query filter in Django?
..._objects)
# sometimes the following is helpful for debugging (returns the SQL statement)
# print queryset.query
share
|
improve this answer
|
follow
|
...
What is the MySQL JDBC driver connection string?
I am new to JDBC and I am trying to make a connection to a MySQL database.
I am using Connector/J driver, but I cant find the JDBC connection string for my Class.forName() method.
...
How to remove all of the data in a table using Django
...ursor = connection.cursor()
table_name = self.model._meta.db_table
sql = "DROP TABLE %s;" % (table_name, )
cursor.execute(sql)
share
|
improve this answer
|
foll...
Java ResultSet how to check if there are any results
...like this:
public static boolean isMyResultSetEmpty(ResultSet rs) throws SQLException {
return (!rs.isBeforeFirst() && rs.getRow() == 0);
}
This function will return true if ResultSet is empty, false if not or throw an SQLException if that ResultSet is closed/uninitialized.
...
Difference Between Select and SelectMany
... find a suitable answer. I need to learn the difference when using LINQ To SQL but all I've found are standard array examples.
...
What is
... java.util.Date. It implements Comparable<Date>. But what about java.sql.Date? It implements Comparable<java.util.Date> as well.
Without the super signature, SortedList would not be able accept the type of java.sql.Date, because it doesn't implement a Comparable of itself, but rather of...