大约有 40,000 项符合查询结果(耗时:0.0330秒) [XML]

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PreparedStatement IN clause alternatives?

... and cons of each is available here. The suggested options are: Prepare SELECT my_column FROM my_table WHERE search_column = ?, execute it for each value and UNION the results client-side. Requires only one prepared statement. Slow and painful. Prepare SELECT my_column FROM my_table WHERE search_...
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Create a date from day month and year with T-SQL

...are @Year Integer Set @Year = 2006 -- ------------------------------------ Select DateAdd(day, @DayOfMonth - 1, DateAdd(month, @Month - 1, DateAdd(Year, @Year-1900, 0))) It works as well, has added benefit of not doing any string conversions, so it's pure arithmetic proce...
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MFC Grid control 2.27 - C/C++ - 清泛网移动版 - 专注C/C++及内核技术

...ading this thing if no one is gonna use it. The control features: Cell selection using the mouse, with optional Control and Shift key combinations. Selection can be disabled. Row and Column resizing. Sizing can be disabled for row, columns or both. Auto row or column sizing when dividers are d...
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Insertion Sort vs. Selection Sort

I am trying to understand the differences between Insertion Sort and Selection Sort. 20 Answers ...
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WITH CHECK ADD CONSTRAINT followed by CHECK CONSTRAINT vs. ADD CONSTRAINT

...CREATE TABLE T2 (FKID INT, SomeOtherVal CHAR(2)); INSERT T1 (ID, SomeVal) SELECT 1, 'A'; INSERT T1 (ID, SomeVal) SELECT 2, 'B'; INSERT T2 (FKID, SomeOtherVal) SELECT 1, 'A1'; INSERT T2 (FKID, SomeOtherVal) SELECT 1, 'A2'; INSERT T2 (FKID, SomeOtherVal) SELECT 2, 'B1'; INSERT T2 (FKID, SomeOtherVal...
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How to keep onItemSelected from firing off on a newly instantiated Spinner?

... I would have expected your solution to work -- I though the selection event would not fire if you set the adapter before setting up the listener. That being said, a simple boolean flag would allow you to detect the rogue first selection event and ignore it. ...
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How to return result of a SELECT inside a function in PostgreSQL?

... bigint , ratio bigint) AS $func$ BEGIN RETURN QUERY SELECT t.txt , count(*) AS cnt -- column alias only visible inside , (count(*) * 100) / _max_tokens -- I added brackets FROM ( SELECT t.txt FROM token t WHERE t.charty...
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How do I spool to a CSV formatted file using SQLPLUS?

...you want for numbers (avoid scientific notation on IDs) spool myfile.csv select table_name, tablespace_name from all_tables where owner = 'SYS' and tablespace_name is not null; Output will be like: TABLE_PRIVILEGE_MAP ,SYSTEM SYSTEM_PRIVILEGE_MAP...
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How do I list all tables in a schema in Oracle SQL?

... schema, you need to have one or more of the following system privileges: SELECT ANY DICTIONARY (SELECT | INSERT | UPDATE | DELETE) ANY TABLE or the big-hammer, the DBA role. With any of those, you can select: SELECT DISTINCT OWNER, OBJECT_NAME FROM DBA_OBJECTS WHERE OBJECT_TYPE = 'TABLE' ...
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Find rows that have the same value on a column in MySQL

...sses and how many times they're used, with the most used addresses first. SELECT email, count(*) AS c FROM TABLE GROUP BY email HAVING c > 1 ORDER BY c DESC If you want the full rows: select * from table where email in ( select email from table group by email having count(*) &g...