大约有 40,000 项符合查询结果(耗时:0.0340秒) [XML]

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How to get Last record from Sqlite?

...LE); OR you can also used following solution: SELECT * FROM tablename ORDER BY column DESC LIMIT 1; share | improve this answer | follow | ...
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PostgreSQL: Modify OWNER on all tables simultaneously in PostgreSQL

...ROM pg_tables WHERE NOT schemaname IN ('pg_catalog', 'information_schema') ORDER BY schemaname, tablename; Sequences SELECT 'ALTER SEQUENCE '|| sequence_schema || '.' || sequence_name ||' OWNER TO my_new_owner;' FROM information_schema.sequences WHERE NOT sequence_schema IN ('pg_catalog', 'inform...
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Java: how to convert HashMap to array

...ray(); // returns an array of values Edit It should be noted that the ordering of both arrays may not be the same, See oxbow_lakes answer for a better approach for iteration when the pair key/values are needed. share ...
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Operator precedence with Javascript Ternary operator

...ach type of operator in a language is evaluated in a particular predefined order (and not just left-to-right). Reference: Javascript Operator Precedence How to change the order of evaluation: Now we know why it fails, you need to know how to make it work. Some other answers talk about changing t...
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Why can't C compilers rearrange struct members to eliminate alignment padding? [duplicate]

... There are multiple reasons why the C compiler cannot automatically reorder the fields: The C compiler doesn't know whether the struct represents the memory structure of objects beyond the current compilation unit (for example: a foreign library, a file on disc, network data, CPU page tables,...
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Filling a DataSet or DataTable from a LINQ query result set

...has a CopyToDataTable method: IEnumerable<DataRow> query = from order in orders.AsEnumerable() where order.Field<DateTime>("OrderDate") > new DateTime(2001, 8, 1) select order; // Create a table from the query. DataTable boundTable = query.CopyToDataTable<DataRow>(...
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GROUP BY with MAX(DATE) [duplicate]

...e FROM ( SELECT train, dest, time, RANK() OVER (PARTITION BY train ORDER BY time DESC) dest_rank FROM traintable ) where dest_rank = 1 share | improve this answer | ...
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MySQL convert date string to Unix timestamp

... After so many trials your solution worked for me: select * from (SELECT order_increment_id, FROM_UNIXTIME(UNIX_TIMESTAMP(STR_TO_DATE(order_date, '%d %M %Y %h:%i:%s %p')),'%Y-%m-%d') as order_date, email_sent FROM `packingslip_header` where email_sent=0) t where order_date >= '2019-11-13' O...
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How can I SELECT rows with MAX(Column value), DISTINCT by another column in SQL?

...en home. Reason being GROUP BY will fetch any random row for each home and ORDER BY will just sort the overall all result as produced by GROUP BY – sactiw Nov 26 '15 at 12:11 ...
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Comparing two collections for equality irrespective of the order of items in them

...valent if they have the same elements in the same quantity, but in any order. Elements are equal if their values are equal, not if they refer to the same object. Using reflector, I modified the code behind AreEquivalent() to create a corresponding equality comparer. It is more complete tha...