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Table is marked as crashed and should be repaired
...an use the command (there must be ample space for the mysql files)
REPAIR TABLE `<table name>`;
for repairing individual tables
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Select first row in each GROUP BY group?
...also supports window functions (the CTE needs to be converted to a derived table though). And Firebird 3.0 will also support Window functions
– a_horse_with_no_name
Mar 14 '14 at 9:19
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Liquibase lock - reasons?
...inst the database helps.
Or you can simply drop the DATABASECHANGELOGLOCK table, it will be recreated.
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Physical vs. logical / soft delete of database record?
...and you don't have to worry about cascading a delete through various other tables in the database that reference the row you are deleting. Disadvantage is that you have to code any reporting/display methods to take the flag into account.
As far as if it is a common practice - I would say yes, but ...
Simple way to transpose columns and rows in SQL?
...VOT and then an aggregate function with a CASE statement to PIVOT:
Create Table:
CREATE TABLE yourTable([color] varchar(5), [Paul] int, [John] int, [Tim] int, [Eric] int);
INSERT INTO yourTable
([color], [Paul], [John], [Tim], [Eric])
VALUES
('Red', 1, 5, 1, 3),
('Green', 8, 4, 3, 5),...
Random record in ActiveRecord
I'm in need of getting a random record from a table via ActiveRecord. I've followed the example from Jamis Buck from 2006 .
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What is the difference between a stored procedure and a view?
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A view represents a virtual table. You can join multiple tables in a view and use the view to present the data as if the data were coming from a single table.
A stored procedure uses parameters to do a function... whether it is updating and inserting ...
Fit cell width to content
...question, but I'll take a stab at it. JSfiddle of the example.
HTML:
<table style="width: 100%;">
<tr>
<td class="block">this should stretch</td>
<td class="block">this should stretch</td>
<td class="block">this should be the content width</...
How do I ALTER a PostgreSQL table and make a column unique?
I have a table in PostgreSQL where the schema looks like this:
3 Answers
3
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Entity Framework: table without primary key
...That's fine, I suppose, but keep in mind that the OP asked about mapping a table without a primary key, not a view. The answer is still the same. Working around the EF's need to have a PK on tables is a bad idea from the standpoint of manageability, data integrity, and performance.
Some have comm...