Does not work either, the whole function is:
create table t1(col1 varchar(3), col2 varchar(100));
insert into t1 values('001', 'Result 1');
insert into t1 values('002', 'Result 2');
insert into t1 values('003', 'Result 3');
CREATE OR REPLACE FUNCTION test(VARCHAR) RETURNS VARCHAR AS $$
DECLARE
col1_value ALIAS FOR $1;
cm_tableName st1_legend.code_map_tablename%TYPE;
lengendTableName VARCHAR := 't1';
query_value VARCHAR ;
BEGIN
SELECT INTO cm_tableName col2 FROM lengendTableName WHERE col1 =
col1_value ;
EXECUTE query_value;
RETURN cm_tableName;
END;
$$ language 'plpgsql' IMMUTABLE STRICT;
select test('001');
Error:
ERROR: syntax error at or near "$1" at character 20
QUERY: SELECT col2 FROM $1 WHERE col1 = $2
CONTEXT: PL/pgSQL function "test" line 8 at select into variables
LINE 1: SELECT col2 FROM $1 WHERE col1 = $2
Does it mean I have to use the cursor ?
Thanks,
Ying
I think it is SELECT INTO cm_tableName col2 FROM ... WHERE ...
2006/3/17, Emi Lu <[EMAIL PROTECTED]>:
Hello,
In pl/pgsql (postgresql 8.01), how to use variables in select .. into ..
command
CREATE OR REPLACE FUNCTION test(VARCHAR) RETURNS VARCHAR AS $$
DECLARE
var1 ALIAS FOR $1;
cm_tableName tableA.col1%TYPE;
T1 VARCHAR := 'sourceTable';
query_value VARCHAR ;
BEGIN
SELECT col2 INTO cm_tableName FROM T1 WHERE col1 = var1 ;
EXECUTE query_value;
RETURN cm_tableName;
END;
$$ language 'plpgsql' IMMUTABLE STRICT;
select test('abc');
Failed.
Also, tried "SELECT col2 INTO cm_tableName FROM || T1 WHERE col1 = ||
var1 " and
"SELECT col2 INTO cm_tableName FROM || T1 || WHERE col1 = || var1"
Failed as well.
T1 and var1 both are variables, may I how to use variables in a "select
... into " query please?
Thanks a lot,
Ying
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