Postgresql Declare variable set select Stack Overflow
You cannot use SET to assign a variable That s taken to be the SQL command SET for setting run time parameters But you can assign a variable at declaration time even use a subquery for that Use LANGUAGE plpgsql not LANGUAGE plpgsql It s an identifier a horse with no name already wrote about naming conflicts
Postgresql Use psql set variable in a function Database , An interesting way of achieving this is using a psql variable to store the whole function body like set body SELECT 1 CREATE FUNCTION bla RETURNS integer LANGUAGE SQL AS c SELECT bla bla 1 Alternatively you can pass the whole definition into the variable and then run it
PostgreSQL Documentation 16 psql
This is equivalent to setting the variable ECHO to errors c command command command Specifies that psql is to execute the given command string command This option can be repeated and combined in any order with the f option
PostgreSQL Documentation 16 SET, Description The SET command changes run time configuration parameters Many of the run time parameters listed in Chapter 20 can be changed on the fly with SET Some parameters can only be changed by superusers and users who have been granted SET privilege on that parameter
Postgresql Set a value to a variable based on the results of a query
Postgresql Set a value to a variable based on the results of a query , What I need to do is set a value to a variable using the EXECUTING query In pure SQL style I could do something like the following here declaring function and etc DECLARE cnt INTEGER EXECUTE SELECT COUNT FROM t INTO cnt How to achieve the same functionality in the form of a PL pgSQL function
Unable To Set The Path To Pg dump Or Psql Executable Issue 21
Assign select value to variable in PostgreSQL 9 3
Assign select value to variable in PostgreSQL 9 3 I have the following table Example create table test id int name varchar 10 varchar 10 I want to assign ID value from table to variable in the function Function create or
Postgresql 9 5 SSIS Set Variable Value From ODBC Query Result Stack
PostgreSQL isn t as flexible in where and how it allows usage of variables The closest thing for what you re trying to accomplish likely would be surrounding it in a DO block like so DO DECLARE foo TEXT BEGIN foo bar SELECT foo END Note this is context dependent and you can find more information in this StackOverflow answer Postgresql How to use a postgres variable in the select clause . The general syntax of a variable declaration is name CONSTANT type COLLATE collation name NOT NULL DEFAULT expression The DEFAULT clause if given specifies the initial value assigned to the variable when the block is entered If the DEFAULT clause is not given then the variable is initialized to the SQL null value Example Declaring a variable Below is an example of how to declare a variable in PostgreSQL called vSite DECLARE vSite varchar This example would declare a variable called vSite as a varchar data type You can then later set or change the value of the vSite variable as follows vSite TechOnTheNet
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