05-13-2013
Insert Command Creating Table Locking Problem
Hi,
i have a java based tool which does insert operation in a TABLE, and in parallel the same table is used by my C++ code which does select Query.
the Table will be always busy, but sometimes the table is getting locked when i try to make an insert, am bit confused whether the lock is because of SELECT query from my C++ code or by the INSERT QUERY from the java Tool.
Do i need to modify the Query if so how..? and from the google i learnt that select puts an internal LOCK.
currently am locking the table before insert below is my query
lock table table_name in exclusive mode nowait
and giving a commit after performing the DML operation so that lock will be removed automatically.
can anyone please solve my query.?
thanks,
senthil
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LEARN ABOUT MOJAVE
dbix::class::resultsourceproxy::table5.18
DBIx::Class::ResultSourceProxy::Table(3) User Contributed Perl Documentation DBIx::Class::ResultSourceProxy::Table(3)
NAME
DBIx::Class::ResultSourceProxy::Table - provides a classdata table object and method proxies
SYNOPSIS
__PACKAGE__->table('cd');
__PACKAGE__->add_columns(qw/cdid artist title year/);
__PACKAGE__->set_primary_key('cdid');
METHODS
add_columns
__PACKAGE__->add_columns(qw/cdid artist title year/);
Adds columns to the current class and creates accessors for them.
table
__PACKAGE__->table('tbl_name');
Gets or sets the table name.
table_class
__PACKAGE__->table_class('DBIx::Class::ResultSource::Table');
Gets or sets the table class used for construction and validation.
has_column
if ($obj->has_column($col)) { ... }
Returns 1 if the class has a column of this name, 0 otherwise.
column_info
my $info = $obj->column_info($col);
Returns the column metadata hashref for a column. For a description of the various types of column data in this hashref, see "add_column"
in DBIx::Class::ResultSource
columns
my @column_names = $obj->columns;
AUTHOR AND CONTRIBUTORS
See AUTHOR and CONTRIBUTORS in DBIx::Class
LICENSE
You may distribute this code under the same terms as Perl itself.
perl v5.18.2 2013-12-16 DBIx::Class::ResultSourceProxy::Table(3)