大约有 47,000 项符合查询结果(耗时:0.0386秒) [XML]

https://stackoverflow.com/ques... 

MySQL “WITH” clause

... You might be interested in somethinkg like this: select * from ( select * from table ) as Subquery share | improve this answer | follow ...
https://stackoverflow.com/ques... 

MySQL order by before group by

... table on both the post_author and the max date. The solution should be: SELECT p1.* FROM wp_posts p1 INNER JOIN ( SELECT max(post_date) MaxPostDate, post_author FROM wp_posts WHERE post_status='publish' AND post_type='post' GROUP BY post_author ) p2 ON p1.post_author = p...
https://stackoverflow.com/ques... 

SQL selecting rows by most recent date

...eturns a result set with ChargeId, ChargeType, and MostRecentServiceMonth SELECT CHARGEID, CHARGETYPE, MAX(SERVICEMONTH) AS "MostRecentServiceMonth" FROM INVOICE GROUP BY CHARGEID, CHARGETYPE share | ...
https://stackoverflow.com/ques... 

DropDownList in MVC 4 with Razor

... @{ List<SelectListItem> listItems= new List<SelectListItem>(); listItems.Add(new SelectListItem { Text = "Exemplo1", Value = "Exemplo1" }); listItems.Add(new SelectListItem {...
https://stackoverflow.com/ques... 

How do I calculate tables size in Oracle

...BLE_NAME FORMAT A32 COLUMN OBJECT_NAME FORMAT A32 COLUMN OWNER FORMAT A10 SELECT owner, table_name, TRUNC(sum(bytes)/1024/1024) Meg, ROUND( ratio_to_report( sum(bytes) ) over () * 100) Percent FROM (SELECT segment_name table_name, owner, bytes FROM dba_segments WHERE segment_type IN...
https://stackoverflow.com/ques... 

How do I search an SQL Server database for a string?

...T) INSERT INTO @Temp(TableName,SchemaName, ColumnName, DataType) SELECT C.Table_Name,C.TABLE_SCHEMA, C.Column_Name, C.Data_Type FROM Information_Schema.Columns AS C INNER Join Information_Schema.Tables AS T ON C.Table_Name = T.Table_Name AND C.TA...
https://stackoverflow.com/ques... 

OnChange event handler for radio button (INPUT type=“radio”) doesn't work as one value

...ame attribute myRadios to read the variable prev which holds the currently selected radio. A comparison is done within each click handler to decide if the clicked radio is the same as the one stored in prev and if not then the currently clicked radio is stored there. Within the click handler, you ha...
https://stackoverflow.com/ques... 

How does MySQL process ORDER BY and LIMIT in a query?

...e LIMIT clause can be used to constrain the number of rows returned by the SELECT statement. LIMIT takes one or two numeric arguments, which must both be nonnegative integer constants (except when using prepared statements). With two arguments, the first argument specifies the offset of the first ...
https://stackoverflow.com/ques... 

PHP code to convert a MySQL query to CSV [closed]

... SELECT * INTO OUTFILE "c:/mydata.csv" FIELDS TERMINATED BY ',' OPTIONALLY ENCLOSED BY '"' LINES TERMINATED BY "\n" FROM my_table; (the documentation for this is here: http://dev.mysql.com/doc/refman/5.0/en/select.html) or:...
https://stackoverflow.com/ques... 

Dynamic SELECT TOP @var In SQL Server

... SELECT TOP (@count) * FROM SomeTable This will only work with SQL 2005+ share | improve this answer | ...