Postgresql Passing parameters for dynamic SQL in a function
Passing parameters for dynamic SQL in a function Ask ion Asked 3 years 3 months ago Modified 3 years 2 months ago Viewed 10k times 3 I am trying to create a function which will dynamically create a unique table name populate the table with a result set returned from another function and return the table name to the caller
PostgreSQL Documentation 16 4 3 Calling Functions, PostgreSQL allows functions that have named parameters to be called using either positional or named notation Named notation is especially useful for functions that have a large number of parameters since it makes the associations between parameters and actual arguments more explicit and reliable
38 5 Query Language SQL Functions PostgreSQL
SQL functions execute an arbitrary list of SQL statements returning the result of the last query in the list In the simple non set case the first row of the last query s result will be returned Bear in mind that the first row of a multirow result is not well defined unless you use ORDER BY
PLPGSQL Cannot use parameters inside a function query, 1 I m trying to create a function that returns all events with the corresponding week number and the day of week the event is occurring using crosstab and series generator I have tested that the actual query works inside the funcition if I use literal values e g 2020 and 3 March month number in place of the variables
Pass a SELECT result as an argument to postgreSQL function
Pass a SELECT result as an argument to postgreSQL function, How to create function correctly to pass a query result as parametr there It s necessery to understand that the function returns another SQL result and I need to use there IN condition func BEGIN RETURN QUERY SELECT myanotherquery WHERE UserState userid IN HERE I NEED TO INSERT MY QUERY RESULT END func postgresql plpgsql Share
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PL pgSQL Function Parameter Modes IN OUT and INOUT PostgreSQL Tutorial
PL pgSQL Function Parameter Modes IN OUT and INOUT PostgreSQL Tutorial The out parameters are defined as a part of the argument list and are returned back as a part of the result The out parameters are very useful in functions that need to return multiple values Note that PostgreSQL has supported the out parameters since version 8 1
Postgresql Create Or Replace Function Returns Table Brokeasshome
However PL pgSQL allows for dynamic SQL where passed parameters or parts are concatenated to a query string and executed with EXECUTE This can convert user input to SQL code and make SQL injection possible Tools are there to do it safely You cannot tell from outside whether the function body handles it properly you have to look at the code SQL injection in Postgres functions vs prepared queries. Parameters name The name optionally schema qualified of the function to create argmode The mode of an argument IN OUT INOUT or VARIADIC If omitted the default is IN Only OUT arguments can follow a VARIADIC one 2 Answers Sorted by 38 I only know two ways First is to use PREPARED STATEMENT Example after PostgreSQL Manual PREPARE usrrptplan int AS SELECT FROM users u logs l WHERE u usrid 1 AND u usrid l usrid AND l date 2 EXECUTE usrrptplan 1 current date PREPARE creates a prepared statement
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