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dtong004
Constraint Violating Yak Guru
281 Posts |
 Posted - 2001-06-08 : 14:28:38
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| The question did not answered and I want to get help. Here is the orignal question:I want to be able to merge two tables into one using a stored procedure if possible. I have two tables with a common set of columns. (Common meaning same column name and datatype/size.) I won't know the names of those common columns or how many columns between the two tables are common. These two tables can also have additional columns as well. How can I merge these two tables' structures creating a new table and then populate the resulting table with the applicable data from the existing tables? Example: ----Table One------ [db1]..[Table One] ColA varchar(25) -- Same as ColA in db2ColB int -- Same as ColB in db2Colx char(10) -- Different Col-----------------------Table Two ----- [db2]..[Table Two] ColA varchar(25) -- Same as ColA in db1ColB int -- Same as ColB in db1Col9 int -- Different Col------------------- The resulting table I want is: [db3]..[MergedTbl] ColA varchar(25) ColB int colx char(10) Col9 intThe original answer:There are two approaches you could take to solve this problem. The first is a UNION query where you simply specify NULL for the columns that do not match between the two tables. The other is to build a temporary table and populate it with the each table. Effectively the same result as the UNION query.However, my problem did not solved. Here is my problem: ****************************************The answer does not address the question. The problem is we need the records in table two match colA and colB with should be updated. example: table one:AA, 2, XAB, 3, YAA, 3, ZAA, 3, RTable two like this:AA, 3, 27AB, 3, 50AA, 1, 30The result should be like this:AA, 2, X, -AB, 3, Y, 50AA, 3, Z, 27AA, 3, R, -AA, 1, -, 30Aperantly, Union cannot do the work. The key is colA+colB is not unique, I don't want the data in table two repeated. Thanks for you help.Daniel |
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Merge TWO, Problem is not solved