大约有 3,568 项符合查询结果(耗时:0.0264秒) [XML]
How can I generate an INSERT script for an existing SQL Server table that includes all stored rows?
...m looking for a way to generate a "Create and insert all rows" script with SQL Management Studio 2008 R2.
4 Answers
...
T-SQL get SELECTed value of stored procedure
In T-SQL, this is allowed:
4 Answers
4
...
Connect Java to a MySQL database
How do you connect to a MySQL database in Java?
14 Answers
14
...
How to order by with union in SQL?
...er the results of the select statement referencing that subselect. Per the SQL Standard, the order of results is undefined barring an explicit order by clause. That first select in your example probably returns its results in the order returned by the subselect, but it is not guaranteed. Further, th...
A migration to add unique constraint to a combination of columns
...aintToShipments < ActiveRecord::Migration
def up
execute <<-SQL
alter table shipments
add constraint shipment_tracking_number unique (tracking_number, carrier);
SQL
end
def down
execute <<-SQL
alter table shipments
drop constraint if exis...
Is having an 'OR' in an INNER JOIN condition a bad idea?
...low query (several minutes on two tables with only ~50,000 rows each, on SQL Server 2008 if it matters), I narrowed down the problem to an OR in my inner join, as in:
...
Proper Repository Pattern Design in PHP?
...ea where the data is stored (meaning it can be changed).
Example to show a SQL implementation (most common).
For maximum performance, controllers should only receive the data they need—no extra fields.
Implementation should leverage some type of data mapper for ease of development.
Implementation ...
Generate full SQL script from EF 5 Code First Migrations
...s://docs.microsoft.com/en-us/ef/core/managing-schemas/migrations/#generate-sql-scripts
There are several options to this command.
The from migration should be the last migration applied to the database before running the script. If no migrations have been applied, specify 0 (this is the default).
T...
How do I do multiple CASE WHEN conditions using SQL Server 2008?
What I'm trying to do is use more than one CASE WHEN condition for the same column.
10 Answers
...
How do you use script variables in psql?
In MS SQL Server, I create my scripts to use customizable variables:
13 Answers
13
...
