Hi Jun,I have attached a working minimal example, that uses a JSON string and inserts that with a prepared statement.
It assumes a locally running postgres which can be changed of course. The interesting part is: * You have to escape comma and quotes in the JSON string.Given a JSON object like {"name": "whatever"} you will have to add quotes to mask the comma and quotes to mask the quotes.
Your string will have to look like "{""name"": ""whatever""}"
* You have to cast the parameter to json in your insert statement.
Add a ::json to the placeholder, as in "insert into something values
(?::json)"
Regards Felix Am 02.12.23 um 14:19 schrieb Jun Zhuang:
Hi Filex,Thanks for the response. I tried with the single quotes and singles quotes + ::json, still got the same error.Just to be sure, are you using a Postgres DB? Also one thing I forgot to mentioned in my original email was the field I am trying to insert into is of data type *text* instead of varchar, I wonder if that makes any difference?Following are some screenshots of what I am trying to do: Inline image Inline image Inline imageOn Saturday, December 2, 2023 at 05:58:52 AM EST, Felix Schumacher <felix.schumac...@internetallee.de> wrote:Hi Jun,I am not sure, what you tried already. When I place the following text into a JDBC Sampler's query field, I get no errors:create table something (id int, data json); insert into something values (1, '{"name": "whatever"}'::json); Same result, when I remove the casting and use create table something (id int, data json); insert into something values (1, '{"name": "whatever"}'); Can you show us a minimal example that fails for you? Regards Felix Am 01.12.23 um 23:24 schrieb Jun Zhuang: > Hi,> I am getting Cannot have quote-char in plain field:['{"] error when trying to insert a JSON string into a Postgres DB table using JDBC request.> I tried the following but nothing worked: > - place the JSON string in single quotes, > - escaping the double quotes with \", > - placing the string in $$<JSON string here>$$ but nothing worked.> There is no issue with the connection and other select/insert queries and I was able to insert from pgAdmin with the same string in single quotes though.> The JSON string looks like this: {"A":"A", "B":[{"C":"C"}]} > I am really out of ideas at this time. Can someone help? > Thanks,Jun > > --------------------------------------------------------------------- To unsubscribe, e-mail:user-unsubscr...@jmeter.apache.org For additional commands, e-mail:user-h...@jmeter.apache.org
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Description: OpenPGP public key
OpenPGP_signature.asc
Description: OpenPGP digital signature
