Top "Listagg" questions

LISTAGG in Oracle to return distinct values

I am trying to use the LISTAGG function in Oracle. I would like to get only the distinct values for …

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Oracle - ORA-01489: result of string concatenation is too long

Created one view within which one field(of 6) is a concatenation of two fields from the source table. Created a …

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What's the equivalent for LISTAGG (Oracle database) in PostgreSQL?

I have to replace the Oracle driver with the newest PostgreSQL. PostgreSQL doesn't know the function LISTAGG. I have to …

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Convert WM_CONCAT to Listagg

My DBA is upgrading my oracle db from v10 to v12. I have some old SP's that uses wm_concat …

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What does LISTAGG with ORDER BY NULL actually use as the order criteria?

If I do SELECT LISTAGG( COLUMN_VALUE ) WITHIN GROUP ( ORDER BY NULL ) AS OrderByNULL, LISTAGG( COLUMN_VALUE ) WITHIN GROUP ( ORDER …

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Convert LISTAGG to XMLAGG Oracle

I have a below SQL and I am trying to convert the LISTAGG to XMLAGG. My DB version is 12.1 and …

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How to Use COLLECT with VARCHAR2 Oracle 10g

I'm trying to get the COLLECT function to work for me. I'm using 10g and therefore found that LISTAGG and …

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Remove duplicate values from comma separated string in Oracle

I need your help with the regexp_replace function. I have a table which has a column for concatenated string …

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How to insert SELECT LISTAGG values to varchar variable

I am writing an Oracle user defined function. How can I insert listtagg values Pears, Oranges, Bananas, Apples into a …

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