I’m using Python to write to a postgres database: But because some of my rows are identical, I get the following error: How can I write an ‘INSERT unless this row already exists’ SQL statement? I’ve seen complex statements like this recommended: But firstly, is this overkill for what I need, and secondly, how can … Read more
Use INSERT IGNORE INTO table. There’s also INSERT … ON DUPLICATE KEY UPDATE syntax, and you can find explanations in 13.2.6.2 INSERT … ON DUPLICATE KEY UPDATE Statement. Post from bogdan.org.ua according to Google’s webcache: 18th October 2007 To start: as of the latest MySQL, syntax presented in the title is not possible. But there … Read more
If you have a table called memos that has two columns id and text you should be able to do like this: If a record already contains a row where text is equal to ‘text to insert’ and id is equal to 5, then the insert operation will be ignored. I don’t know if this will work for your particular query, but perhaps … Read more
Try replacing the string literal for date ‘1989-12-09’ with TO_DATE(‘1989-12-09′,’YYYY-MM-DD’)
Use INSERT IGNORE INTO table. There’s also INSERT … ON DUPLICATE KEY UPDATE syntax, and you can find explanations in 13.2.6.2 INSERT … ON DUPLICATE KEY UPDATE Statement. Post from bogdan.org.ua according to Google’s webcache: 18th October 2007 To start: as of the latest MySQL, syntax presented in the title is not possible. But there are several very easy ways to accomplish … Read more
The error means that you are providing not as much data as the table wp_posts does contain columns. And now the DB engine does not know in which columns to put your data. To overcome this you must provide the names of the columns you want to fill. Example: Look up the table definition and see which … Read more