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How to get number of entries in a Lua table?
.... The Lua # operator only counts entries with integer keys, and so does table.getn :
8 Answers
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Query to list number of records in each table in a database
How to list row count of each table in the database. Some equivalent of
21 Answers
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MySQL Insert into multiple tables? (Database normalization?)
I tried searching a way to insert information in multiple tables in the same query, but found out it's impossible?
So I want to insert it by simply using multiple queries i.e;
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Entity Framework. Delete all rows in table
How I can quickly remove all rows in table using Entity Framework?
21 Answers
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What does it mean by select 1 from table?
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SELECT 1 FROM TABLE_NAME means, "Return 1 from the table". It is pretty unremarkable on its own, so normally it will be used with WHERE and often EXISTS (as @gbn notes, this is not necessarily best practice, it is, however, common enough t...
Drop a temporary table if it exists
I have two lines of code in SQL that create two tables on the fly, i need to do something like
3 Answers
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ActiveRecord: List columns in table from console
I know that you can ask ActiveRecord to list tables in console using:
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ALTER TABLE to add a composite primary key
I have a table called provider . I have three columns called person , place , thing . There can be duplicate persons, duplicate places, and duplicate things, but there can never be a dupicate person-place-thing combination.
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What are the performance characteristics of sqlite with very large database files? [closed]
...application).
The tests involve a single sqlite file with either a single table, or multiple tables. Each table had about 8 columns, almost all integers, and 4 indices.
The idea was to insert enough data until sqlite files were about 50GB.
Single Table
I tried to insert multiple rows into a sqli...
How do I set the table cell widths to minimum except last column?
I have a table with 100% width. If I put <td> s in it, they get spread out with equal length columns. However, I want all the columns except last to have as small a width as possible, without wrapping text.
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