RETURN result; 代码语言:txt 复制 函数的完整示例代码如下: 代码语言:sql 复制 CREATEORREPLACEFUNCTIONget_users()RETURNSTABLE(idINTEGER,nameVARCHAR(50),emailVARCHAR(50))AS$$DECLAREresult RECORD;BEGINSELECT*INTOresultFROMusers;RETURNQUERYSELECT*FROMresult;END;$$LANGUAGEplpgsql; ...
createorreplacefunctionfunc02(outcharactervarying)returnssetofcharactervaryingas$$beginforiin1..5loopselectnameinto$1fromtb1whereid=i;returnnext;endloop;end$$languageplpgsql; AI代码助手复制代码 使用return query: createorreplacefunctionfunc03()returnssetofcharactervaryingas$$beginforiin1..5loopreturnquer...
RETURNQUERY query;RETURNQUERYEXECUTEcommand-string[USING expression [, ...]]; 4|24.1 RETURN QUERY命令 将一条查询的结果追加到一个函数的结果集中。 CREATEORREPLACEFUNCTIONgetAllFoo2()RETURNSSETOF fooAS$$DECLAREr foo%rowtype;BEGINRETURNQUERYSELECT*FROMfooWHEREfooid>0;END$$ LANGUAGE PLPGSQL; 4|34.2...
--3 方法二:使用 reutrn query 返回多条记录( 单列) CREATE OR REPLACE FUNCTION skytf.func_test_result_query_single ( in_id integer) RETURNSSETOF varcharas $$ DECLARE v_rec RECORD; BEGIN return query ( (select name from test_result1 where id = in_id) union (select name from test_resul...
我在PostgreSQL中有此功能，但是我不知道如何返回查询结果：用途RETURN QUERY：CREATE OR REPLACE FUNCTION ...
CREATEORREPLACEFUNCTION"public"."func1"()RETURNSSETOF"public"."a"AS$BODY$BEGINreturnquery select a.id,a.name from a limit2;return;END$BODY$LANGUAGEplpgsqlSTABLECOST100ROWS1000 得到的结果如下图。 期中return query还可以使用return next。具体语法是: ...
CREATE OR REPLACE FUNCTION public.recursive_test(username text) RETURNS TABLE(approvee_username text, approvee_name text, approver_name text) LANGUAGE plpgsql AS $function$ #variable_conflict use_variable BEGIN return query WITH RECURSIVE all_approvees AS ( ...
用途RETURN QUERY：CREATE OR REPLACE FUNCTION word_frequency(_max_tokens int)RETURNS TABLE (txt ...
CREATE OR REPLACE FUNCTION search_articles(search_query TEXT) RETURNS TABLE(id INT, title TEXT, content TEXT) AS $$ BEGIN RETURN QUERY SELECT id, title, content FROM articles WHERE to_tsvector('english_custom', content) @@ plainto_tsquery('english_custom', search_query); END; $$ LANGUAGE...
1.定义:定义函数(存储过程 )的关键字为function。 2.创建 Create or replace function 过程名(参数名 参数类型,…..) returns 返回值类型 as $body$ Declare 变量名变量类型; Begin return 变量名; //存储过程中的返回语句 End; $body$ Languageplpgsql; ...