PostgreSQL trigger if ELSE
IF-THEN-ELSE statements add to IF-THEN by letting you specify an alternative set of statements that should be executed if the condition is not true. (Note this ... ,In row-level triggers the WHEN condition can examine the old and/or new values of columns of the row. Statement-level triggers can also have WHEN conditions ...
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 PostgreSQL trigger if ELSE 相關參考資料
Documentation: 10: CREATE TRIGGER - PostgreSQL
In row-level triggers the WHEN condition can examine the old and/or new values of columns of the row. Statement-level triggers can also have WHEN conditions ... https://www.postgresql.org Documentation: 9.1: Control Structures - PostgreSQL
IF-THEN-ELSE statements add to IF-THEN by letting you specify an alternative set of statements that should be executed if the condition is not true. (Note this ... https://www.postgresql.org Documentation: 9.1: CREATE TRIGGER - PostgreSQL
In row-level triggers the WHEN condition can examine the old and/or new values of columns of the row. Statement-level triggers can also have WHEN conditions ... https://www.postgresql.org Documentation: 9.2: Trigger Procedures - PostgreSQL
Note that the function must be declared with no arguments even if it ... This variable is NULL in statement-level triggers and for INSERT operations. https://www.postgresql.org How can I use "IF statements" in a postgres trigger - Stack ...
Per the documentation, you don't need to explicitly test boolean data types in an IF statement - they default to test for being true so you'd use: https://stackoverflow.com PLpgSQL IF Statement - PostgreSQL Tutorial
The if statement determines which statements to execute based on the result of a boolean expression. PL/pgSQL provides you with three forms of the if statements ... https://www.postgresqltutorial PostgreSQL UPDATE trigger on SELECT using IFELSE ...
This query should do what you need: update t1 set current_location = case t2.status when 0 then 'Deployed' when 1 then 'Retrieved' when 2 ... https://stackoverflow.com Sql trigger with if then else construction - Stack Overflow
2013年4月25日 — Thera is trigger in PostgreSQL 8.4: CREATE OR REPLACE FUNCTION updateMarkers() RETURNS trigger AS $$ BEGIN IF NEW. https://stackoverflow.com Trigger Function IF-ELSE Postgres - Stack Overflow
SELECT it into variable and compare to zero. You may also want to check if SELECT actually returned anything. https://stackoverflow.com UDF, Triggers, and IFELSE or CASE in PostgreSQL - Stack ...
2017年5月23日 — UDF, Triggers, and IF/ELSE or CASE in PostgreSQL · sql database postgresql if-statement case-statement. I have a games table, that records p1_id ... https://stackoverflow.com |