大约有 37,000 项符合查询结果(耗时:0.0350秒) [XML]
Check if a Bash array contains a value
...t does not write to stdout in an "if" statement would help: if elementIn "$table" "${skip_tables[@]}" ; then echo skipping table: ${table}; fi; Thanks for your help!
– GlenPeterson
Jul 1 '13 at 14:20
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DynamoDB vs MongoDB NoSQL [closed]
...can have multiple secondary global indexes. I'm doing queries on a single table with 4 possible filter parameters and sorting the results, this is supported (barely) through the use of the global secondary indexes with filter expressions. The problem comes in when you try to get the total results ...
Using a custom image for a UITableViewCell's accessoryView and having it respond to UITableViewDeleg
I'm using a custom drawn UITableViewCell, including the same for the cell's accessoryView . My setup for the accessoryView happens by the way of something like this:
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Common MySQL fields and their appropriate data types
...e specific - and storage is not the only cost. Sorting data and temporary tables (memory engine) will use the fixed amount.
– Morgan Tocker
Sep 17 '10 at 15:34
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SQL select only rows with max value on a column [duplicate]
I have this table for documents (simplified version here):
27 Answers
27
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Default implementation for Object.GetHashCode()
...d it is common to also provide ==/!=operators, and often to implement IEquatable<T> too.
For generating the hash code, it is common to use a factored sum, as this avoids collisions on paired values - for example, for a basic 2 field hash:
unchecked // disable overflow, for the unlikely possi...
python pandas remove duplicate columns
...d, the problem is probably with the duplicate column titles.
For a sample table file 'dummy.csv' I made up:
Time H1 N2 Time N2 Time Relative
3 13 13 3 13 0
1 15 15 1 15 14
14 19 19 14 19 14
19 5 5 19 5 1
using read_table gives unique columns and works properly...
How to return only the Date from a SQL Server DateTime datatype
...PU time taken to perform all the pieces. If both queries are run against a table with millions of rows, the CPU time using DateDiff can be close to 1/3rd of the Convert CPU time!
To see execution plans for queries:
set showplan_text on
GO
Both DATEADD and DATEDIFF will execute a CONVERT_IMPLICI...
How to create a SQL Server function to “join” multiple rows from a subquery into a single delimited
To illustrate, assume that I have two tables as follows:
13 Answers
13
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LIMIT 10..20 in SQL Server
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You example query runs fine but If I change the table name and order by col as below SELECT * FROM DimProduct ORDER BY ProductKey OFFSET 5 ROWS FETCH NEXT 5 ROWS ONLY It gives error Parse error at line: 4, column: 1: Incorrect syntax near 'OFFSET'
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