SQL-Engine
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{
column => '*'
}
]
}
}
);
$dbh->begin_work;
while (my $op = $sql->operations->pull) {
say '[SQLITE3] ', $op->statement;
$dbh->prepare($op->statement)->execute;
}
$dbh->rollback;
# table-drop operations
# * table
#
# DROP TABLE users
$sql->table_create(
name => 'people',
columns => [
{
name => 'id',
type => 'integer',
primary => 1
}
]
);
$sql->table_drop(
name => 'people'
);
$dbh->begin_work;
while (my $op = $sql->operations->pull) {
say '[SQLITE3] ', $op->statement;
$dbh->prepare($op->statement)->execute;
}
$dbh->rollback;
# * table, condition
#
# DROP TABLE users CASCADE
$sql->table_create(
name => 'people',
columns => [
{
name => 'id',
type => 'integer',
primary => 1
}
]
);
$sql->table_drop(
name => 'people',
condition => 'cascade'
);
$dbh->begin_work;
while (my $op = $sql->operations->pull) {
say '[SQLITE3] ', $op->statement;
$dbh->prepare($op->statement)->execute;
}
$dbh->rollback;
# table-rename operations
# * table rename
#
# ALTER TABLE peoples RENAME TO people
$sql->table_create(
name => 'peoples',
columns => [
{
name => 'id',
type => 'integer',
primary => 1
}
]
);
$sql->table_rename(
name => {
old => 'peoples',
new => 'people'
}
);
$dbh->begin_work;
while (my $op = $sql->operations->pull) {
say '[SQLITE3] ', $op->statement;
$dbh->prepare($op->statement)->execute;
}
$dbh->rollback;
# column-create operations
# * column type
#
# ALTER TABLE users ADD COLUMN accessed datetime
$sql->table_create(
name => 'users',
columns => [
{
name => 'id',
type => 'integer',
primary => 1
}
]
);
$sql->column_create(
for => {
table => 'users'
examples/sqlite-tdb view on Meta::CPAN
columns => [
{
name => 'id',
type => 'integer',
primary => 1
}
]
);
$sql->constraint_create(
source => {
table => 'users',
column => 'profile_id'
},
target => {
table => 'profiles',
column => 'id'
},
name => 'user_profile_id'
);
$dbh->begin_work;
while (my $op = $sql->operations->pull) {
say '[NO SUPPORT] ', $op->statement;
# $dbh->prepare($op->statement)->execute;
}
$dbh->rollback;
# * named constraint, on update, on delete
#
# ALTER TABLE ADD CONSTRAINT user_defined_name (user_id) REFERENCES users (id) ON UPDATE CASCADE ON DELETE CASCADE
$sql->table_create(
name => 'users',
columns => [
{
name => 'id',
type => 'integer',
primary => 1
},
{
name => 'profile_id',
type => 'integer'
}
]
);
$sql->table_create(
name => 'profiles',
columns => [
{
name => 'id',
type => 'integer',
primary => 1
}
]
);
$sql->constraint_create(
on => {
update => 'cascade',
delete => 'cascade'
},
source => {
table => 'users',
column => 'profile_id'
},
target => {
table => 'profiles',
column => 'id'
},
name => 'user_profile_id'
);
$dbh->begin_work;
while (my $op = $sql->operations->pull) {
say '[NO SUPPORT] ', $op->statement;
# $dbh->prepare($op->statement)->execute;
}
$dbh->rollback;
# constraint-drop operations
# * constraint
#
# ALTER TABLE DROP CONSTRAINT generated
$sql->table_create(
name => 'users',
columns => [
{
name => 'id',
type => 'integer',
primary => 1
},
{
name => 'profile_id',
type => 'integer'
}
]
);
$sql->table_create(
name => 'profiles',
columns => [
{
name => 'id',
type => 'integer',
primary => 1
}
]
);
$sql->constraint_create(
source => {
table => 'users',
column => 'profile_id'
},
target => {
table => 'profiles',
column => 'id'
},
);
$sql->constraint_drop(
source => {
table => 'users',
column => 'profile_id'
},
target => {
table => 'profiles',
column => 'id'
}
);
$dbh->begin_work;
while (my $op = $sql->operations->pull) {
say '[NO SUPPORT] ', $op->statement;
# $dbh->prepare($op->statement)->execute;
}
$dbh->rollback;
# * named constraint
#
# ALTER TABLE DROP CONSTRAINT user_defined_name
$sql->table_create(
name => 'users',
columns => [
{
name => 'id',
type => 'integer',
primary => 1
},
{
name => 'profile_id',
type => 'integer'
}
]
);
$sql->table_create(
name => 'profiles',
columns => [
{
name => 'id',
type => 'integer',
primary => 1
}
]
);
$sql->constraint_create(
on => {
update => 'cascade',
delete => 'cascade'
},
source => {
table => 'users',
column => 'profile_id'
},
target => {
table => 'profiles',
column => 'id'
},
name => 'user_profile_id'
);
$sql->constraint_drop(
source => {
table => 'users',
column => 'profile_id'
},
target => {
table => 'profiles',
column => 'id'
},
name => 'user_profile_id'
);
$dbh->begin_work;
while (my $op = $sql->operations->pull) {
say '[NO SUPPORT] ', $op->statement;
# $dbh->prepare($op->statement)->execute;
}
$dbh->rollback;
# index-create operations
# * index
#
# CREATE INDEX index_users_email ON users (name)
$sql->table_create(
name => 'users',
columns => [
{
name => 'id',
type => 'number',
primary => 1
},
{
name => 'name',
type => 'string'
}
]
);
$sql->index_create(
for => {
table => 'users'
},
columns => [
{
column => 'name'
}
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