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      • www.informit.com
        Get down and dirty with mySQL by learning the basics of SQL syntax and useful functions for maintaining tables and integrity. ... Multiple-Table Deletes and Updates Prior to MySQL 4, one limitation of DELETE is that you can refer only to columns of the ta
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      • munishbansal.wordpress.com
        When we execute any T-SQL statement(s) in SQL Server; it is accomplished by two processes: Compilation & then 2. Execution of the statement(s). Compilation phase is useful for validating the syntax and object names in Transact-SQL for executing them ...
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    日期:2024-08-07
    Notice how the SQL UPDATE statement is JOINing the @boy, @girl, and @relationship table using INNER JOINs and limiting it to boys who have dated Winona Ryder. The update is made to the result of that JOIN and then we are selecting all the rows from that ....
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    日期:2024-08-09
    I've use an SQL utility on the AS/400 call SEQUEL by ASC, that allows updating of values in one table from values in another joined table. The syntax is something like this: update set((a.fld1=b.fld1)(a.fld2=b.fld2)) from file1 a join file2 b on a.key1=b....
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    日期:2024-08-10
    INSERT using UNION is not a way to improve the performance. I had tried inserting 35706 records to a table (int values). The normal insert way (35706 insert statements) took just 9 seconds to complete the execution whereas the union all way takes more tha...
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    日期:2024-08-11
    A SQL Server function can return a single value or multiple values. To return multiple values, the return type of the the function should be a table. Let’s see an example where you want to pass a number to a SQL Server function and get consecutive date va...
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    日期:2024-08-13
    3 thoughts on “ How to pass multiple values using GridView HyperLinkField ? ” Pingback: Dew Drop – January 29, 2011 | Alvin Ashcraft's Morning Dew Randy Dolejsi August 14, 2011 Great blog, thanks for the thoughtful post! Please check out my blog as well a...
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    日期:2024-08-10
    The INSERT command has two distinct ways to load data into a table. INSERT INTO Table (field1, field2) VALUES ('string1','string2') And INSERT INTO Table (field1, field2) SELECT field1, field2 FROM Table2 Both of these are very handy and have been around ...
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    日期:2024-08-12
    SQL: Update a column with multiple values with single query .... However, I've found that using a merge statement in these situations allows me ......
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    日期:2024-08-12
    28 Aug 2013 ... A requirement arises in many systems to update multiple SQL ... to the value being set, and then do one UPDATE statement per distinct value....