I am trying to query a GlobalTable1 using SQL, but the column name is present in token.col in the token, how to access the token.col value in the sql query
Concatenate the label value and the query string.
"SELECT [" + token.col + "] FROM tableName WHERE..."
Yeah it working fine Thanks for the Answer, Now, I just need to Query two column in WHERE which matches the value, can you please help out in this, i am attaching the file with thisFetch_Table_using_Token_and_SQL.fsm
- The label on the token is called "Name", not "Col"
- When comparing a column to a string value, the string needs to be enclosed in single quotation marks within the query (WHERE [Name] == 'A'), so you need to add those to the query string in front of and after the label value.
- You need to convert the number value from "token.Num" to a string before you can insert it into the query like this (string.fromNum(token.Num))
- You only write WHERE once, then write multiple checks separated by AND or OR
Table result = Table.query("SELECT * FROM Test1 \
WHERE [Name] = '"+token.Name+"' AND [Num] = "+string.fromNum(token.Num)+"");
With all that said, values that you want to compare columns to can more easily be passed in via the $-syntax. Inserting the label directly into the string is only needed if it represents a column name or SQL clause.
Table result = Table.query("SELECT * FROM Test1 WHERE [Name] = $1 AND [Num] = $2", token.Name, token.Num);
When the query is run, $1 will be replaced by the first value that is passed in after the query, $2 by the second and so on.
Can you please help me out with the example
What is unclear about the example I provided? You type your query as you would normally until you would enter the column name. You then end the string, add the column name to it with ' + token.col', then you add the the rest of the query as a string again ( + "...").
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