I am trying to optimize one part of my code that inserts data into MySQL. Should I chain INSER开发者_开发百科Ts to make one huge multiple-row INSERT or are multiple separate INSERTs faster?https://dev
做数据库www.devze.com开发的过程中难免会遇到有表数据备份的，而SELECT INTO……和INSERT INTO SELECT…… 这两种语句就是用来进行表数据复制，下面简单的介绍下：
How to pass default values in the Insert Select construction in SQL? I have a table: create table1 (field1 int, field2 int, field3 int default 1337)
I\'m us开发者_开发技巧ing the latest subsonic dll and the latest linq templates from github. The db i\'m inserting into is MySQL. Id column on table is primary key auto increment.
I want to declare a server开发者_开发问答 name and use this name in an insert statement. So far all i got is an error message.
Setup: ASP.net 3.5, Linq-to-Sql. Separate Web and DB servers (each 8-core, 8GB RAM). 4 databases. I am running an insert operation with a few million records into DB4 (using Linq-to-Sql for now, thoug
I need to duplicate a row a couple thousand times.I need to change one colum开发者_StackOverflow社区n from the copied row based on a list of ids.
SQL Server question. When doing INSERT INTO T1 SELECT (C1, C2) FROM T2 I don开发者_开发知识库\'t want to specify column names of T1 because they are the same as in T2
Application Description I have a table which stores id\'s which represent area\'s on a map. Each map contains 1000 areas. A territory is any number of area\'s of a map that are touching. Users fight
I\'ve been battling this for a while. I\'m trying to implement a many to one association. I have a bunch of rows in a table, called readings. These accumulate over time, and every now and then I want
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