I have some tables Table1,Table2,Table3,Table4. They have the same number of columns and rows and what I want is to merge them into one big Table. I have tried making a list of the tables and then converting it to a matrix but the output doesn't seem what I want.

2009年2月1日 · Say I have two tables: KnownHours: ChargeNum CategoryID Month Hours 111111 1 2/1/09 10 111111 1 3/1/09 30 111111 1 4/1/09 50 22...

2008年11月29日 · I have two tables with the same columns, and I need to copy one table's rows to the other table's rows to create one big table with all the values from both tables. Right now I am doing this query to return the same thing: SELECT col1, col2, col3 from Table1 union SELECT col1, col2, col3 from Table2

I am essentially trying to do a UNION all on multiple tables and have the result be a new table. I know that I can do this to select and stack all of the rows: SELECT * FROM table1 UNION ALL SELECT * FROM table2 UNION ALL SELECT * FROM table3 ....

2020年8月28日 · Can you not create a view on top of these 12 tables. The view will be an union of all these tables. Based on the comments below, I further elaborated my answer. please try this approach. It will provide better performance when your table is large. Partitioning it will improve performance. This is based on real experience.

2018年7月26日 · It tries to merge the variables and create some missing values. I have multiple heterogeneous tables and I need to create one table. Therefore I would have some meaningless variable names and all tables stacked on each other. –

2017年1月30日 · This is also a problem if you change names of the tables, since the names are hard-wired in VBA. To avoid additional work, consider this: So, assume the following: On each worksheet there is one or several tables, but they have similar structure. There are only tables on worksheets - no other members of ListObjects collection are being present.

2016年8月11日 · If we have two or more tables with the same columns. Table 1. Structure, Name, Active 1,A,1 Table 2. Structure, Name, Active 2,B,0 We would like to combine these two tables and save it into a new one. New Table . Structure, Name, Active 1,A,1 2,B,0 Here is the code

A union of two 1-row tables (two multiset relations each with one tuple) would have two rows (tuples) in the resulting relation. In relational algebra (which SQL isn't) the union result might be one row, though only if the two input relations contained an identical tuple, eg. self-union of a one-tuple relation. –

2016年5月20日 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. Provide details and share your research! But avoid … Asking for help, clarification, or responding to other answers. Making statements based on opinion; back them up with references or personal experience. To learn more, see our tips on writing great ...