大约有 9,000 项符合查询结果（耗时：0.0216秒） [XML]
SQL Server 2008: How to query all databases sizes?
I have MS SQL 2008 R2, 500 databases.
What is the most efficient, easiest and 'modern' way to query all databases sizes.
14...
Python/postgres/psycopg2: getting ID of row just inserted
...URNING id")
id_of_new_row = cursor.fetchone()[0]
And please do not build SQL strings containing values manually. You can (and should!) pass values separately, making it unnecessary to escape and SQL injection impossible:
sql_string = "INSERT INTO domes_hundred (name,name_slug,status) VALUES (%s,%...
SQL Server: converting UniqueIdentifier to string in a case statement
....new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f6299918%2fsql-server-converting-uniqueidentifier-to-string-in-a-case-statement%23new-answer', 'question_page');
}
);
Post as a guest
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Manually map column names with class properties
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This works fine:
var sql = @"select top 1 person_id PersonId, first_name FirstName, last_name LastName from Person";
using (var conn = ConnectionFactory.GetConnection())
{
var person = conn.Query<Person>(sql).ToList();
return person...
DynamoDB vs MongoDB NoSQL [closed]
... to use a database for this, that's the reason why I decided to choose a noSQL data storage.
8 Answers
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Why can't I use an alias in a DELETE statement?
In SQL Server Compact Edition in Visual Studio 2010 (maybe SQL Server and SQL in general, I don't know), this command works:
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Join/Where with LINQ and Lambda
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I find that if you're familiar with SQL syntax, using the LINQ query syntax is much clearer, more natural, and makes it easier to spot errors:
var id = 1;
var query =
from post in database.Posts
join meta in database.Post_Metas on post.ID equals meta.Pos...
How can I get the list of a columns in a table for a SQLite database?
...rieve a list of columns in a table. The database is the latest release of SQLite (3.6, I believe). I am looking for code that does this with a SQL query. Extra bonus points for metadata related to the columns (e.g. length, data type, etc...)
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SQL - HAVING vs. WHERE
I have the following two tables:
8 Answers
8
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Use of class definitions inside a method in Java
...tion of the execute():
@Override
public void execute(final String sql) throws DataAccessException {
if (logger.isDebugEnabled()) {
logger.debug("Executing SQL statement [" + sql + "]");
}
/**
* Callback to execute the statement.
(can ac...