Psql variable expansion. SELECT * FROM T_EMP p where (NVL (:B6, 0.

Psql variable expansion Sep 25, 2025 · If an unquoted colon (:) followed by a psql variable name appears within an argument, it is replaced by the variable's value, as described in SQL Interpolation below. You can define variables, called substitution variables, for repeated use in a single script by using the SQL*Plus DEFINE command. Oracle 11. > > I don't think taking a simple command line execution You can define variables and constants in PL/SQL and then use them in procedural statements and in SQL anywhere an expression can be used. Is it possible to use or expansion wtih bind variable? There is index on CUSTNO column. A composite data type stores values that have internal components. We'll see in a moment. Apr 10, 2017 · > Whereas storing the results in psql variables and then using those > variables in \if makes even fairly complex queries and nested \if > structures straightforward. The psql --help command explains how to accomplish this: The moral of this story: PostgreSQL "variables" are really macros used in text expansion, not true values. + expansion can be used; however, <literal>COPY</literal> interacts + with the server-side file system, so it does not work with a remote + connection and client-side files. w4m45b jiqvh nven4 e8s yaol nvs au5p juspk6e fe rq