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INSERT INTO vs SELECT INTO
... know the table definition beforehand. SELECT INTO is probably included in SQL because it makes tasks like ad hoc reporting or copying tables much easier.
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Multiple variables in a 'with' statement?
...rs):
with get_conn() as conn, conn.cursor() as cursor:
cursor.execute(sql)
SQLAlchemy: how to filter date field?
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from app import SQLAlchemyDB as db
Chance.query.filter(Chance.repo_id==repo_id,
Chance.status=="1",
db.func.date(Chance.apply_time)<=end,
db.func.date(Chance.apply_time)>=...
Get the week start date and week end date from week number
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Upvoted both the answer and Warrens comment. Sql Server Version 11.0.5058.0 at the very least gives the wrong date for Monday without Warrens modification. Was giving me Friday instead.
– Morvael
Apr 6 '16 at 9:17
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Rails 4: List of available datatypes
...method-i-add_column
These are the same as with Rails 3.
If you use PostgreSQL, you can also take advantage of these:
:hstore
:json
:jsonb
:array
:cidr_address
:ip_address
:mac_address
They are stored as strings if you run your app with a not-PostgreSQL database.
Edit, 2016-Sep-19:
There's a l...
Datatable vs Dataset
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You can also run multiple SQL select queries in one SQLCommand and access each resultset in dataset.Tables[i]
– Jan
Dec 8 '17 at 10:31
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Missing artifact com.microsoft.sqlserver:sqljdbc4:jar:4.0
I am trying to add MS SQL driver dependency in my POM.xml file and the following is the dependency.
10 Answers
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What is the difference between MySQL Server and MySQL Client
...tall both but what are the differences between the client and server for MySQL.
3 Answers
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Java 8 stream reverse order
...it wrong anyway. Dump it into a DB and get a reversed stream using regular SQL.
– Cubic
Oct 3 '19 at 13:13
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MySQL, better to insert NULL or empty string?
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Better to Insert NULL for consistency in your database in MySQL. Foreign keys can be stored as NULL but NOT as empty strings.
You will have issues with an empty string in the constraints.
You may have to insert a fake record with a unique empty string to satisfy a Foreign Key constr...