On Sat, 16 May 2015, silvioprog wrote:
Hello,
I need to create numbered databases like 09_0025, 09_0026 etc., that using any
SQL tool like pgAdmin, I just execute this script, and it works fine:
CREATE DATABASE "09_0025" WITH ENCODING='UTF-8'
OWNER="postgres" TEMPLATE="template1" LC_COLLATE='English_United States.1252'
LC_CTYPE='English_United States.1252'
CONNECTION LIMIT=-1 TABLESPACE="pg_default"
Notice that I need to specify some details, like ENCODING, OWNER,
LC_COLLATE/LC_CTYPE etc., so the TPQConnection.CreateDB can't be used because
it doesn't allows to configure those
details.
Another information before show my tests: this script above works fine in other
libs like Zeos, UniDAC and JDBC, I tested it yesterday.
Now, please see my tests and their respective errors.
Test 1:
[code]
var
VCon: TPQConnection;
begin
VCon := TPQConnection.Create(nil);
try
VCon.HostName := '127.0.0.1';
VCon.DatabaseName := 'postgres';
VCon.UserName := 'postgres';
VCon.Password := 'postgres';
VCon.ExecuteDirect(
'CREATE DATABASE "09_0025" WITH ENCODING=''UTF8'' ' +
' OWNER="postgres" TEMPLATE="template1" LC_COLLATE=''English_United
States.1252'' LC_CTYPE=''English_United States.1252'' ' +
' CONNECTION LIMIT=-1 TABLESPACE="pg_default"');
finally
VCon.Free;
end;
end;
[/code]
Error:
Transaction not set.
Test 2:
[code]
var
VCon: TPQConnection;
begin
VCon := TPQConnection.Create(nil);
VCon.Transaction := TSQLTransaction.Create(VCon);
try
VCon.HostName := '127.0.0.1';
VCon.DatabaseName := 'postgres';
VCon.UserName := 'postgres';
VCon.Password := 'postgres';
VCon.ExecuteDirect(
'CREATE DATABASE "09_0025" WITH ENCODING=''UTF8'' ' +
' OWNER="postgres" TEMPLATE="template1" LC_COLLATE=''English_United
States.1252'' LC_CTYPE=''English_United States.1252'' ' +
' CONNECTION LIMIT=-1 TABLESPACE="pg_default"');
finally
VCon.Free;
end;
end;
[/code]
Error:
TPQConnection : Execution of query failed (PostgreSQL: ERROR: CREATE DATABASE
cannot run inside a transaction block
Severity: ERROR
SQL State: 25001
Primary Error: CREATE DATABASE cannot run inside a transaction block).
Set the stoUseImplicit option on the transaction:
VCon.Transaction.options:=[stoUseImplicit]
Why methods like "ExecuteDirectPG", "CheckConnectionStatus", "CheckResultError",
"TranslateFldType" and "GetExtendedFieldInfo" are not declared as protected methods?
No particular reason. That can be changed.
Michael.
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