指定out参数,使用return next: create or replace function func02(out character varying)returns setof character varying as $$ begin for i in 1..5 loop select name into $1from tb1 where id=i; return next; end loop; end $$ language plpgsql; 使用return query: create or replace function func...
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 $$ DECLARE v_rec RECORD; BEGIN return query ( (select name from test_result1 where id = in_id) union (select name from test_resul...
ERROR: syntax error at or near "RETURN" LINE 18: RETURN query SELECT * from t1,t2 解决方案: You can not return the values from a function returning . If you want to return the rows after insertion you can try below mentioned function definition:VOID CREATE OR REPLACE FUNCTION "public"...
用途RETURN QUERY：CREATE OR REPLACE FUNCTION word_frequency(_max_tokens int) RETURNS ...
用途RETURN QUERY：CREATE OR REPLACE FUNCTION word_frequency(_max_tokens int)RETURNS TABLE (txt ...
success: function(res) { //; //layer.close(ii); } }); 后台处理程序 [HttpPost] publicIHttpActionResult getFormdata() { stringid = HttpContext.Current.Request["id"]; stringname = HttpContext.Current.Request["name"]; returnOk("success2"); ...
RETURN result; 代码语言:txt 复制 函数的完整示例代码如下: 代码语言:sql 复制 CREATEORREPLACEFUNCTIONget_users()RETURNSTABLE(idINTEGER,nameVARCHAR(50),emailVARCHAR(50))AS$$DECLAREresult RECORD;BEGINSELECT*INTOresultFROMusers;RETURNQUERYSELECT*FROMresult;END;$$LANGUAGEplpgsql; ...
RETURN QUERY 2. RETURN命令 语法：RETURN RETURN expression;如果没有使⽤表达式 RETURN命令⽤于告诉这个函数已经完成执⾏了。如果返回标量类型，那么可以使⽤任何表达式.要返回⼀个复合(⾏)数值，你必须写⼀个记录或者⾏变量的expression。2.1 案例1：带有表达式return案例 CREATE OR REPLACE FUNCTION get...
create function get_sports(status int) returns setof sport as $body$ select * from sport where status = $1; $body$ language sql stable; create function get_sports(status int) returns setof sport as $body$ begin return query select * from sport where status = $1; end $b...