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|
#!/usr/bin/env ruby
# Copyright (c) 2001 David Muse
# See the file COPYING for more information.
require 'dbi'
# usage
if ARGV.length < 7
print "usage: rubydbi.rb host port socket user password query iterations"
exit(0)
end
for index in 0..ARGV[6].to_i-1 do
# instantiation
db=DBI.connect("DBI:SQLRelay:host="+ARGV[0]+";port="+
ARGV[1]+";socket="+ARGV[2]+";",ARGV[3],ARGV[4])
# debug and autocommit attributes
db["sqlrelay_debug"]=true
db["AutoCommit"]=true
# query functions
stmt=db.prepare(ARGV[5])
print "FETCH ALL\n"
stmt.execute()
for i in stmt.fetch_all() do
for j in i do
print j+" "
end
print "\n"
end
print "\n\n"
print "FETCH ONE\n"
stmt.execute()
for j in stmt.fetch() do
print j+" "
end
print "\n\n"
print "FETCH MANY\n"
for i in stmt.fetch_many(5) do
for j in i do
print j+" "
end
print "\n"
end
print "\n\n"
print "FETCH SCROLL\n"
print "NEXT\n"
for j in stmt.fetch_scroll(DBI::SQL_FETCH_NEXT) do
print j+" "
end
print "\n"
print "PRIOR\n"
for j in stmt.fetch_scroll(DBI::SQL_FETCH_PRIOR) do
print j+" "
end
print "\n"
print "FIRST\n"
for j in stmt.fetch_scroll(DBI::SQL_FETCH_FIRST) do
print j+" "
end
print "\n"
print "LAST\n"
for j in stmt.fetch_scroll(DBI::SQL_FETCH_LAST) do
print j+" "
end
print "\n"
print "ABSOLUTE 0\n"
for j in stmt.fetch_scroll(DBI::SQL_FETCH_ABSOLUTE,0) do
print j+" "
end
print "\n"
print "RELATIVE 5\n"
for j in stmt.fetch_scroll(DBI::SQL_FETCH_RELATIVE,5) do
print j+" "
end
print "\n\n"
# row count
print "ROWS\n"
print stmt.rows()
print "\n\n"
# column names
print "COLUMNS\n"
columns=stmt.column_info()
for i in columns do
print i['name']+":"+i['type_name']+":"
print i['precision']
print "\n"
end
print "\n\n"
# bind functions
print "BIND FUNCTIONS\n"
stmt=db.prepare("select :var1,:var2,:var3 from dual")
stmt.bind_param("var1",1,false)
stmt.bind_param("var2","hello",false)
stmt.bind_param("var3",1.1,false)
stmt.execute()
rows=stmt.fetch_all()
for i in rows do
for j in i do
print j+" "
end
print "\n"
end
stmt.bind_param("var1",2,false)
stmt.bind_param("var2","hi",false)
stmt.bind_param("var3",2.22,false)
stmt.execute()
rows=stmt.fetch_all()
for i in rows do
for j in i do
print j+" "
end
print "\n"
end
stmt.bind_param("var1",3,false)
stmt.bind_param("var2","bye",false)
stmt.bind_param("var3",3.333,{'precision'=>1,'scale'=>4})
stmt.execute()
rows=stmt.fetch_all()
for i in rows do
for j in i do
print j+" "
end
print "\n"
end
print "\n\n"
# ping
print "PING\n"
if db.ping()
print "ping succeeded\n"
else
print "ping failed\n"
end
print "\n\n"
# commit and rollback
print "COMMIT\n"
db.commit()
print "\n\n"
print "ROLLBACK\n"
db.rollback()
print "\n\n"
# error message
print "ERROR HANDLING\n"
begin
badstmt=db.prepare("invalid query")
badstmt.execute()
rescue DBI::ProgrammingError => error
print error
print "\n"
end
# invalid attribute
begin
db["invalid"]=true
rescue DBI::NotSupportedError => error
print error
print "\n"
end
GC::start()
end
|
