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Hi.I'm using postgresql 8.0.3 under win2000 and developing with VS2003
(npgsql net provider). I would like to start a transaction with a sql function. When user press "edit" button on my form, i would lock the current row. After user has modified data on form, pressing "save" button I would save the modified row by sql update function and so commit. Well.The update function works fine. My problem is to lock the current row. My code is something like: CREATE OR REPLACE FUNCTION "public"."new_function" () RETURNS SETOF "public"."table" AS $body$ begin; select * from table where field = 'value' for update; $body$ LANGUAGE 'sql' VOLATILE CALLED ON NULL INPUT SECURITY INVOKER; But I get : ERROR , BEGIN IS NOT ALLOWED IN SQL FUNCTION What's wrong? Please tell me if it's a syntax problem maybe have I to use pgsql ? How can I lock row in pgsql ? Thanks in advance. |
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