有些朋友希望使用这样的一种查询方式,比如要查询Movies实体对象,同时想通过预先加载方式加载相关的Reviews对象,但是又希望只加载符合条件的部分Reviews。 很不幸的是,EF并不能满足这样的功能ObjectQuery<Movie>.Include(…)方法只能加载全部或者全部不加载。 var dbquery=ctx.Movies.Include("Reviews").Where(g=>g.Genr...
Hi Noms -- again, no; you are not writing code that solves the issue stated in the post. EACH ROW independently might need to a join to table A or table B; it is not determined before the query is executed, it is determined on a row-by-row basis. i.e., there is no "@Type"...
Create a general report and create a data query named ds1. The SQL statement is as follows: SELECT * FROM SALES_BASIC$ {if(len(Quantity)=0,"","limit "+Quantity)}Note:The parameter here is Quantity, which is used with limit to limit the row quantity during data query.Table...
靶场要求: This lab contains a blind SQL injection vulnerability. The applicationuses a tracking cookie for analytics, and performs an SQL query containing the value of the submitted cookie. The results of the SQL query are not returned, and the application does not respond any differently based ...
2. Where the HIGHEST right_level for a certain user is GREATER THAN OR EQUAL TO the currently logged in user's right_level but that right level must be active = 0 I use the following query and it seems to do fine except that it doesn't handle the 2 above select u.id as user...
I've been using the RadControls (particularly RadGrid) for about a month now and i just found a weird bug with my RadGrid app when I tried to add additional condition to the sqldatasource query string. in my scenario, i have a list of employees and I'd like to exempt the Resigned...
PluginVisualTableQuerySort PredefinedHierarchy ProgressBarOptions QueryExecutionOptions RadarChartAggregatedFieldWells RadarChartAreaStyleSettings RadarChartConfiguration RadarChartFieldWells RadarChartSeriesSettings RadarChartSortConfiguration RadarChartVisual RangeEndsLabelType ReferenceLine ReferenceL...
This aggregate produces a query with the SQL 2003 FILTER WHERE syntax on databases that support it: SELECT count('id') FILTER (WHERE account_type=1) as regular, count('id') FILTER (WHERE account_type=2) as gold, count('id') FILTER (WHERE account_type=3) as platinum FROM clients; ...
PluginVisualTableQuerySort PredefinedHierarchy ProgressBarOptions RadarChartAggregatedFieldWells RadarChartAreaStyleSettings RadarChartConfiguration RadarChartFieldWells RadarChartSeriesSettings RadarChartSortConfiguration RadarChartVisual RangeEndsLabelType ReferenceLine ReferenceLineCustomLabelConfigur...
and i need to insert a range of values if that specific value does not exist. but sql doesnt work, ive come to the conclusion that the conditional insert doesnt work well in mysql //PHP code I use in the php file, i used different versions of the $query with and without $num i ev...