intersect

问题 I have a simple SQL relational model with a many to many relation. Here is the composition table ___________________________ | object1_id | object2_id | |---------------------------| I would like to know all the object1 that are common to a set of object2 . My basic feeling is to do a request like this SELECT c.object1_id FROM composition c WHERE c.object2_id = <given_id_1> INTERSECT SELECT c.object1_id FROM composition c WHERE c.object2_id = <given_id_2> And if I have N object2 in the set, I

问题 I am needing some help with this! I have been steered toward the intersect function, but it seems limited as it only matches and returns matched values. I am trying to combine 2 tables on a common column value and return the rows based on a date parameter. Is this even possible using SQL? Thanks in advance! My starting tables look like this: name date doc info janedoe 7/21 jones 47 jonwall 7/1 nick 21 name date doc info janedoe 6/21 jones 74 jonwall 8/31 hall 22 I want to combine these rows

问题 I had a question pertaining to the two built in VBA function of .Match and .Intersect. Currently I have 2 1-dimensional arrays that I wish to consolidate information into a new array. I realize I've posted a question about the approach to the problem earlier but this question pertains to which method would be better. Would one way be able to consolidate information into a new array faster than the other? and is one method more reliable than the other as well? 回答1: From Excel help Excel

问题 Ive looked everywhere i could for what i am guessing has a simple solution. But i am a new programmer and am having a bit of trouble. I have a few draggable image view circles in my view and i want to prevent any overlapping between the image views. Im not looking for any serious collision solutions(friction, vectors, etc...), just something to stop the image views from going any further once they make contact with each other. Any guidance to the solution is appreciated. Thanks. 回答1: That

问题 I have a MySQL table of postcodes with the geometric area of each saved as a polygon. I also have a table of regional areas that are also polygons. I'm doing a simple query to find the intersecting area for a particular postcode (ie to find which area it belongs to) but I'm getting areas returned that do not intersect at all. Here is my query: SELECT a.*, pc.StateID AS PostcodeStateID FROM area a JOIN postcode pc ON INTERSECTS(pc.Geometry, a.Geometry) WHERE pc.Postcode = '4065' Why is MySQL

问题 There is a function in my prototype system which detects intersections when you click on a Collada file. The intersect function is below: function Intersectfun ( event ) { mouse.x = ( event.clientX / window.innerWidth ) * 2 - 1; mouse.y = - ( event.clientY / window.innerHeight ) * 2 + 1; var vector = new THREE.Vector3( mouse.x, mouse.y, 1 ); var toIntersect = []; THREE.SceneUtils.traverseHierarchy(scene, function (child) { if (child instanceof THREE.Mesh) { toIntersect.push(child); } }); //

问题 I know that mySQL 5.x does not support INTERSECT, but that seems to be what I need. Table A: Products (p_id) Table B: Prod_cats (cat_id) - category info (name, description, etc) Table C: prod_2cats (p_id, cat_id) - many to many prod_2cats holds the many (1 or more) categories that have been assigned to Products (A). Doing a query/filter lookup, (user interactive) and need to be able to select across multiple categories the products that meet ALL the criteria. Ex: - 80 products assigned to

问题 I found this code online and apparently it works for other people but not me? I don't know where it's wrong. I made a simple example and have my Range1 and Range 2 to be certain cells in excel, Also, I would like to know if there is a way to return the intersections, if it can. Thanks in advance! Function InRange(Range1 As Range, Range2 As Range) As Boolean Set intersectRange = Application.Intersect(Range1, Range2) If intersectRange Is Nothing Then InRange = False Else InRange = True End If

问题 This is building upon an earlier question Awk conditional filter one file based on another (or other solutions) Quick summary at bottom of question I have an awk program that outputs a column from rows in a text file 'refGene.txt if values in that row match 2 out of 3 values in another text file. I need to include an additional criteria for finding a match between the two files. The criteria is inclusion if the range of the 2 numberical values specified in each row in file 1 overlap with the

问题 I have a list of marked individuals (column Mark) which have been captured various years (column Year) within a range of the river (LocStart and LocEnd). Location on the river is in meters. I would like to know if a marked individual has used overlapping range between years i.e. if the individual has gone to the same segment of the river from year to year. Here is an example of the original data set: ID Mark Year LocStart LocEnd 1 1081 1992 21,729 22,229 2 1081 1992 21,203 21,703 3 1081 2005