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Merging dictionaries in C#
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Dictionary<String, String> allTables = new Dictionary<String, String>();
allTables = tables1.Union(tables2).ToDictionary(pair => pair.Key, pair => pair.Value);
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Unable to set data attribute using jQuery Data() API
...y="vader"></div>
<a href="#" id="changeData"></a>
<table id="log">
<tr><th>Setter</th><th>Getter</th><th>Result of calling getter</th><th>Notes</th></tr>
</table>
JavaScript (jQuery 1.6.2+)
var $chang...
Is there a point to minifying PHP?
...o improve performance... after performing benchmarking and profiling and establishing that caching itself will be the best possible performance gain.
– Charles
Nov 2 '10 at 16:58
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ActiveRecord.find(array_of_ids), preserving order
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for me chaining don't work. Here tables name should be added before id:text like this: ["position((',' || somethings.id::text || ',') in ?)", ids.join(',') + ','] full version that worked for me: scope :for_ids_with_order, ->(ids) { order = sanitize_...
Creating a copy of a database in PostgreSQL [closed]
...rday it worked, now random unique constrain are violated. Note: I drop all table to receiver db.
– gunzapper
Apr 1 '16 at 10:45
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JPA eager fetch does not join
...nd JOIN are two extremes and SUBSELECT falls in between. One can choose suitable strategy based on her/his domain model.
By default SELECT is used by both JPA/EclipseLink and Hibernate. This can be overridden by using:
@Fetch(FetchMode.JOIN)
@Fetch(FetchMode.SUBSELECT)
in Hibernate. It also all...
Using arrays or std::vectors in C++, what's the performance gap?
...ong. The standard forbids exponential growth: § 23.2.3 paragraph 16 says "Table 101 lists operations that are provided for some types of sequence containers but not others. An implementation shall provide these operations for all container types shown in the “container” column, and shall implem...
PostgreSQL: Is it better to use multiple databases with one schema each, or one database with multip
...LongTermStorage" and so on. "UserManagement" would then contain the "User" table, as well as all stored procedures, triggers, sequences, etc. that are needed for the user management.
Databases are entire programs, schemas are components.
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Using CSS :before and :after pseudo-elements with inline CSS?
...r(data-content); display: inline-block; width: 100%; }
</style>
<table><tr><td data-content="post"></td></tr></table>
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SQLAlchemy default DateTime
...mport declarative_base
Base = declarative_base()
class Test(Base):
__tablename__ = 'test'
id = Column(Integer, primary_key=True)
created_date = Column(DateTime, default=datetime.datetime.utcnow)
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