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What does it mean by select 1 from table?

... 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...
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Using Auto Layout in UITableView for dynamic cell layouts & variable row heights

How do you use Auto Layout within UITableViewCell s in a table view to let each cell's content and subviews determine the row height (itself/automatically), while maintaining smooth scrolling performance? ...
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How to take backup of a single table in a MySQL database?

...sqldump takes the backup of an entire database. I need to backup a single table in MySQL. Is it possible? How do I restore it? ...
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Override and reset CSS style: auto or none don't work

I would like to override following CSS styling defined for all tables: 7 Answers 7...
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Display names of all constraints for a table in Oracle SQL

I have defined a name for each of the constraint for the multiple tables that I have created in Oracle SQL. 6 Answers ...
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jQuery DataTables: control table width

I have a problem controlling the width of a table using the jQuery DataTables plugin. The table is supposed to be 100% of the container width, but ends up being an arbitrary width, rather less than the container width. ...
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Cannot use identity column key generation with ( TABLE_PER_CLASS )

... The problem here is that you mix "table-per-class" inheritance and GenerationType.Auto. Consider an identity column in MsSQL. It is column based. In a "table-per-class" strategy you use one table per class and each one has an ID. Try: @GeneratedValue(strat...
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Insert new column into table in sqlite?

I have a table with columns name , qty , rate . Now I need to add a new column COLNew in between the name and qty columns. How do I add a new column in between two columns? ...
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Which data type for latitude and longitude?

... want to store latitude and longitude values in PostgreSQL 9.1.1 database table. I will calculate distance between two points, find nearer points by using this location values. ...
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How to Get True Size of MySQL Database?

...SQL database use, in order to select a web host. I found the command SHOW TABLE STATUS LIKE 'table_name' so when I do the query, I get something like this: ...