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“sql Questions - Stack Overflow”的内容更新

累计：9461 篇（自 2009-08-07 起）

更新：约10篇/天，更新比较频繁，最后更新758 天前

sql Questions - Stack Overflow

SQL - Call Stored Procedure for each record

hi all,i am looking for a way to call a stored procedure for each record of a select statement. select @someids = (select spro.id from sometable as spro inner join [address] addr on addr.id = spro.id inner join city cty on cty.cityid = addr.cityid where cty.cityid = @cityid)while @someids is not nullbegin exec updatecomputedfulltext @someidse... (305 天前)

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sql Questions - Stack Overflow

sql query to return differences between two tables

i am trying to compare two tables, sql server, to verify some data. i want to return all the rows from both tables where data is either in one or the other. in essence, i want to show all the discrepancies. i need to check three pieces of data in doing so, firstname, lastname and product.i'm fairly new to sql and it seems like a lot of the solutions i'm... (305 天前)

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sql Questions - Stack Overflow

Why can I not express this subquery? Is there an alt

i get an error: subqueries are not allowed in this context. only scalar expressions are allowed.why are subqueries not allowed? i'm just trying to move some value over to another row in the same database. is there another way of expression this quickly? (it's just a one-time operation...)insert into html_content (pageid, html_content) values (2... (305 天前)

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sql Questions - Stack Overflow

Paging in SQL with LIMIT/OFFSET sometimes results in

hi community!i'm developing an online gallery with voting and have a separate table for pictures and votes (for every vote i'm storing the id of the picture and the id of the voter). the tables related like this: picture <--(1:n, using vote.picture_id)-- vote. i would like to query the pictures table and sort the output by votes number. this is what i d... (305 天前)

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sql Questions - Stack Overflow

Sql Server 2005 - Insert Update Trigger - Get update

hi all,i want to create a table trigger for insert and update. how can i get the values of the current record that is inserted/updated?... (305 天前)

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sql Questions - Stack Overflow

What are some of your most useful database standards

i will start you off with some basic examples, but i really want to know what makes things go smoothly for you in the database aspect:table name matches primary key name and description keyschemas are by functional areaavoid composite primary keys where possible (use unique constraints)camel case table names and field namesdo not prefix tables with... (305 天前)

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sql Questions - Stack Overflow

Using an Alias in SQL Calculations

why won't this query work?select 10 as my_num, my_num*5 as another_numberfrom tablein this example, i'm trying to use the my_num alias in other calculations. this results in unknown column "my_num"this is a simplified version of what i am trying to do, but basically i would like to use an alias to make other calculations. my calculations are much mo... (305 天前)

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