OTL 4.0, Example 692 (Customizing the date format in OTL tracing via #define OTL_TRACE_DATE_FORMAT)

This example demonstrates date format customization in OTL tracing.

Source Code

#include <iostream>
using namespace std;

#include <stdio.h>

unsigned int my_trace_level=
0x1 | // 1st level of tracing
0x2 | // 2nd level of tracing
0x4 | // 3rd level of tracing
0x8 | // 4th level of tracing
0x10; // 5th level of tracing
// each level of tracing is represented by its own bit,
// so levels of tracing can be combined in an arbitrary order.

#define OTL_TRACE_LEVEL my_trace_level
// enables OTL tracing, and uses my_trace_level as a trace control variable.

#define OTL_TRACE_STREAM cerr
// directs all OTL tracing to cerr

#define OTL_TRACE_LINE_PREFIX "MY OTL TRACE ==> "
// redefines the default OTL trace line prefix. This #define is optional

// change the date format in OTL tracing to YYYY-MM-DD.
#define OTL_TRACE_FORMAT_DATETIME(s)                           \
s.year<<"-"<<s.month<<"-"<<s.day                         \
<<" "<<s.hour<<":"<<s.minute<<":"<<s.second<<"."<<s.fraction

// the following #define is needed in case if
// timestamps with time zones are used.
#define OTL_TRACE_FORMAT_TZ_DATETIME(s) \
s.year<<"-"<<s.month<<"-"<<s.day  \
<<" "<<s.hour<<":"<<s.minute<<":"<<s.second<<"."<<s.fraction \
<<" "<<s.tz_hour<<":"<<s.tz_minute



#define OTL_ORA8 // Compile OTL 4.0/OCI8
#include <otlv4.h> // include the OTL 4.0 header file

otl_connect db; // connect object

void insert(void)
// insert rows into table
{
otl_stream o(50, // buffer size
"insert into test_tab2 values(:f1<int>,:f2<timestamp>)",
// SQL statement
db // connect object
);

otl_datetime tm;

for(int i=1;i<=10;++i){
tm.year=2009;
tm.month=10;
tm.day=19;
tm.hour=23;
tm.minute=12;
tm.second=12;
o<<i<<tm;
}
}

void select(void)
{
otl_stream i(50, // buffer size
"select * from test_tab2 where f2=:f2<timestamp>",
// SELECT statement
db // connect object
);
// create select stream

int f1;
otl_datetime tm,f2;

tm.year=2009;
tm.month=10;
tm.day=19;
tm.hour=23;
tm.minute=12;
tm.second=12;

i<<tm; // assigning :1 = tm
// SELECT automatically executes when all input variables are
// assigned. First portion of out rows is fetched to the buffer

while(!i.eof()){ // while not end-of-data
i>>f1>>f2;
cout<<"f1="<<f1<<", f2="<<f2.year<<"-"<<f2.month<<"-"<<f2.day
<<" "<<f2.hour<<":"<<f2.minute<<":"
<<f2.second<<endl;
}

}
int main()
{
otl_connect::otl_initialize();

try{

db.rlogon("scott/tiger"); // connect to the database

otl_cursor::direct_exec
(
db,
"drop table test_tab2",
otl_exception::disabled // disable OTL exceptions
); // drop table

otl_cursor::direct_exec
(
db,
"create table test_tab2(f1 int, f2 date)"
); // create table

insert(); // insert records into table
select(); // select records from table

}

catch(otl_exception& p){ // intercept OTL exceptions
cerr<<p.msg<<endl; // print out error message
cerr<<p.stm_text<<endl; // print out SQL that caused the error
cerr<<p.var_info<<endl; // print out the variable that caused the error
}

db.logoff(); // disconnect from the database

return 0;

}

Output

MY OTL TRACE ==> otl_connect(this=004190F4)::rlogon(connect_str="scott/*****", auto_commit=0);
MY OTL TRACE ==> otl_cursor::direct_exec(connect=004190F0,sqlstm="drop table test_tab2",exception_enabled=0);
MY OTL TRACE ==> otl_cursor::direct_exec(connect=004190F0,sqlstm="create table test_tab2(f1 int, f2 date)",exception_enabled=1);
MY OTL TRACE ==> otl_stream(this=0012FED0)::open(buffer_size=50, sqlstm=insert into test_tab2 values(:f1<int>,:f2<timestamp>), connect=004190F0);
MY OTL TRACE ==> otl_stream(this=0012FED0)::operator <<(int: ftype=4, placeholder=:f1, value=1);
MY OTL TRACE ==> otl_stream(this=0012FED0)::operator <<(otl_datetime&: ftype=8, placeholder=:f2, value=2009-10-19 23:12:12.0);
MY OTL TRACE ==> otl_stream(this=0012FED0)::operator <<(int: ftype=4, placeholder=:f1, value=2);
MY OTL TRACE ==> otl_stream(this=0012FED0)::operator <<(otl_datetime&: ftype=8, placeholder=:f2, value=2009-10-19 23:12:12.0);
MY OTL TRACE ==> otl_stream(this=0012FED0)::operator <<(int: ftype=4, placeholder=:f1, value=3);
MY OTL TRACE ==> otl_stream(this=0012FED0)::operator <<(otl_datetime&: ftype=8, placeholder=:f2, value=2009-10-19 23:12:12.0);
MY OTL TRACE ==> otl_stream(this=0012FED0)::operator <<(int: ftype=4, placeholder=:f1, value=4);
MY OTL TRACE ==> otl_stream(this=0012FED0)::operator <<(otl_datetime&: ftype=8, placeholder=:f2, value=2009-10-19 23:12:12.0);
MY OTL TRACE ==> otl_stream(this=0012FED0)::operator <<(int: ftype=4, placeholder=:f1, value=5);
MY OTL TRACE ==> otl_stream(this=0012FED0)::operator <<(otl_datetime&: ftype=8, placeholder=:f2, value=2009-10-19 23:12:12.0);
MY OTL TRACE ==> otl_stream(this=0012FED0)::operator <<(int: ftype=4, placeholder=:f1, value=6);
MY OTL TRACE ==> otl_stream(this=0012FED0)::operator <<(otl_datetime&: ftype=8, placeholder=:f2, value=2009-10-19 23:12:12.0);
MY OTL TRACE ==> otl_stream(this=0012FED0)::operator <<(int: ftype=4, placeholder=:f1, value=7);
MY OTL TRACE ==> otl_stream(this=0012FED0)::operator <<(otl_datetime&: ftype=8, placeholder=:f2, value=2009-10-19 23:12:12.0);
MY OTL TRACE ==> otl_stream(this=0012FED0)::operator <<(int: ftype=4, placeholder=:f1, value=8);
MY OTL TRACE ==> otl_stream(this=0012FED0)::operator <<(otl_datetime&: ftype=8, placeholder=:f2, value=2009-10-19 23:12:12.0);
MY OTL TRACE ==> otl_stream(this=0012FED0)::operator <<(int: ftype=4, placeholder=:f1, value=9);
MY OTL TRACE ==> otl_stream(this=0012FED0)::operator <<(otl_datetime&: ftype=8, placeholder=:f2, value=2009-10-19 23:12:12.0);
MY OTL TRACE ==> otl_stream(this=0012FED0)::operator <<(int: ftype=4, placeholder=:f1, value=10);
MY OTL TRACE ==> otl_stream(this=0012FED0)::operator <<(otl_datetime&: ftype=8, placeholder=:f2, value=2009-10-19 23:12:12.0);
MY OTL TRACE ==> otl_stream(this=0012FED0)::close();
MY OTL TRACE ==> otl_stream(this=0012FED0), executing SQL Stm=insert into test_tab2 values(:f1 ,:f2 ), current batch size=10, row offset=0
MY OTL TRACE ==> otl_connect(this=004190F0)::commit();
MY OTL TRACE ==> otl_stream(this=0012FED0)::open(buffer_size=50, sqlstm=select * from test_tab2 where f2=:f2<timestamp>, connect=004190F0);
MY OTL TRACE ==> otl_stream(this=0012FED0)::operator <<(otl_datetime&: ftype=8, placeholder=:f2, value=2009-10-19 23:12:12.0);
MY OTL TRACE ==> otl_stream(this=0012FED0), executing SQL Stm=select * from test_tab2 where f2=:f2 , buffer size=50
MY OTL TRACE ==> otl_stream(this=0012FED0), fetched the first batch of rows, SQL Stm=select * from test_tab2 where f2=:f2 , RPC=10
MY OTL TRACE ==> otl_stream(this=0012FED0)::operator >>(int& : ftype=2, placeholder=F1, value=1);
MY OTL TRACE ==> otl_stream(this=0012FED0)::operator >>(otl_datetime& : ftype=8, placeholder=F2, value=2009-10-19 23:12:12.0);
f1=1, f2=2009-10-19 23:12:12
MY OTL TRACE ==> otl_stream(this=0012FED0)::operator >>(int& : ftype=2, placeholder=F1, value=2);
MY OTL TRACE ==> otl_stream(this=0012FED0)::operator >>(otl_datetime& : ftype=8, placeholder=F2, value=2009-10-19 23:12:12.0);
f1=2, f2=2009-10-19 23:12:12
MY OTL TRACE ==> otl_stream(this=0012FED0)::operator >>(int& : ftype=2, placeholder=F1, value=3);
MY OTL TRACE ==> otl_stream(this=0012FED0)::operator >>(otl_datetime& : ftype=8, placeholder=F2, value=2009-10-19 23:12:12.0);
f1=3, f2=2009-10-19 23:12:12
MY OTL TRACE ==> otl_stream(this=0012FED0)::operator >>(int& : ftype=2, placeholder=F1, value=4);
MY OTL TRACE ==> otl_stream(this=0012FED0)::operator >>(otl_datetime& : ftype=8, placeholder=F2, value=2009-10-19 23:12:12.0);
f1=4, f2=2009-10-19 23:12:12
MY OTL TRACE ==> otl_stream(this=0012FED0)::operator >>(int& : ftype=2, placeholder=F1, value=5);
MY OTL TRACE ==> otl_stream(this=0012FED0)::operator >>(otl_datetime& : ftype=8, placeholder=F2, value=2009-10-19 23:12:12.0);
f1=5, f2=2009-10-19 23:12:12
MY OTL TRACE ==> otl_stream(this=0012FED0)::operator >>(int& : ftype=2, placeholder=F1, value=6);
MY OTL TRACE ==> otl_stream(this=0012FED0)::operator >>(otl_datetime& : ftype=8, placeholder=F2, value=2009-10-19 23:12:12.0);
f1=6, f2=2009-10-19 23:12:12
MY OTL TRACE ==> otl_stream(this=0012FED0)::operator >>(int& : ftype=2, placeholder=F1, value=7);
MY OTL TRACE ==> otl_stream(this=0012FED0)::operator >>(otl_datetime& : ftype=8, placeholder=F2, value=2009-10-19 23:12:12.0);
f1=7, f2=2009-10-19 23:12:12
MY OTL TRACE ==> otl_stream(this=0012FED0)::operator >>(int& : ftype=2, placeholder=F1, value=8);
MY OTL TRACE ==> otl_stream(this=0012FED0)::operator >>(otl_datetime& : ftype=8, placeholder=F2, value=2009-10-19 23:12:12.0);
f1=8, f2=2009-10-19 23:12:12
MY OTL TRACE ==> otl_stream(this=0012FED0)::operator >>(int& : ftype=2, placeholder=F1, value=9);
MY OTL TRACE ==> otl_stream(this=0012FED0)::operator >>(otl_datetime& : ftype=8, placeholder=F2, value=2009-10-19 23:12:12.0);
f1=9, f2=2009-10-19 23:12:12
MY OTL TRACE ==> otl_stream(this=0012FED0)::operator >>(int& : ftype=2, placeholder=F1, value=10);
MY OTL TRACE ==> otl_stream(this=0012FED0)::operator >>(otl_datetime& : ftype=8, placeholder=F2, value=2009-10-19 23:12:12.0);
f1=10, f2=2009-10-19 23:12:12
MY OTL TRACE ==> otl_stream(this=0012FED0)::close();
MY OTL TRACE ==> otl_connect(this=004190F0)::logoff();


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Copyright © 1996-2017, Sergei Kuchin, email: skuchin@gmail.com, skuchin@gmail.com .

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