I’ll do a test case on this below. How do I use the (NOT) EXISTS or (NOT) IN clause ? Insert multiple rows with where not exists condition. Code: DO $$ BEGIN IF EXISTS (SELECT FROM educational_platforms WHERE technology='psql') THEN I'm trying to achieve database abstraction in my project, but now I got stuck with doing a bulk INSERT in PostgreSQL. Check the sample: If the table exists, you get a message like a table already exists. Now, TABLE IF NOT EXISTS is available so not require to scan any catalog table for checking the table existence. If the updated data already exists, it replaces the old version. PostgreSQL also has INSERT… ON CONFLICT UPDATE grammar from 9.5. Regards Phil How will you which records were updated, thus able to know which need to be inserted? And even not changing there old code or script. In this case, you can use a combination of bulk delete and bulk insert. Re: Conditional INSERT: if not exists at 2006-08-23 20:57:44 from Bruno Wolff III Re: Conditional INSERT: if not exists at 2006-10-05 07:07:05 from Stuart Bishop Browse pgsql-novice by date If you’re looking to bulk-load tables, also check out the COPY command, which can be used to insert rows from a text or CSV file. If you know there won't be concurrent inserts or deletes affecting the row of interest there is a way to do this in the INSERT statement. I have also published an article on it. Would it be feasible, using your suggestion, to simply put in two SQL statements, in the same query - first UPDATE when EXISTS, then INSERT when NOT EXISTS, to accomplist this in one go ? If the updated data does not exist, it is inserted to the database. Hi, When I'm using the query Previously, we have to use upsert or merge statement to do this kind of operation. Here are the statements that will do so. Re: Conditional INSERT: if not exists at 2006-08-23 18:57:55 from Franck Routier; Responses. Because, before PostgreSQL 9.1 this was not there and still they perception is the same. The fastest method to load or unload data in PostgreSQL is the copy command. After a long time of waiting, PostgreSQL 9.5 introduced INSERT ON CONFLICT [DO UPDATE] [DO NOTHING]. This option instructs PostgreSQL to add the new column only if the column name does not exist in the table. Some notes about indexes and foreign keys: It is usually faster to create the indexes and foreign keys after the bulk load and to delete or disable them before the load. Please Sign up or sign in to vote. The sample code is as follows. I’ll use the same file to load the data as in the previous post. The solution I'm. 0.00/5 (No votes) See more: SQL. ... table. This option basically helps to perform DML actions like, Insert IF not Exists, Update IF Exists. > My problem: if the insert fails because the value already exists, then > this starts a rollback of my entire transaction. 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