How to merge two databases in SQL Server?
Both databases have the same schema, but they may experience conflict with primary key in some tables. So I want them to just ignore the duplicate rows, and continue merging further. ...
merging-data
Analyzing data from same tables in diferent db instances.
Short version: How can I map two columns from table A and B if they both have a common identifier which in turn may have two values in column C Lets say: A --- 1 , 2 B --- ? , 3 C ----- 45, 2 45, 3 Using table C I know that id 2 and 3 belong to the same item ( 45 ) and thus "?" in table B should be 1. What query could do ...
MySQL merge tables with different structure
I have two databases with different structure. Table 1: ch_code ch_def ch_weight Table 2: address ch_code I need to merge this two tables, so the structure would look like: ch_code ch_def ch_weight address The number or rows in two tables are different (table 1 has more data). Should I use merge, union.. some...