Memcached – Get CAS Data
Memcached gets command is used to get the value with CAS token. If the key does not exist in Memcached, then it returns nothing. Syntax The basic syntax of Memcached gets command is as…
ggplot2 – Bar Plots & Histograms
Bar plots represent the categorical data in rectangular manner. The bars can be plotted vertically and horizontally. The heights or lengths are proportional to the values represented in graphs. The…
MySQL – Clone Tables
There may be a situation when you need an exact copy of a table and CREATE TABLE ... SELECT doesn't suit your purposes because the copy must include the same indexes, default…
MySQL – Temporary Tables
The temporary tables could be very useful in some cases to keep temporary data. The most important thing that should be known for temporary tables is that they will be…
OBIEE – Dimensional Modeling
Dimensional modeling provides set of methods and concepts that are used in DW design. According to DW consultant, Ralph Kimball, dimensional modeling is a design technique for databases intended to…
MySQL – INDEXES
A database index is a data structure that improves the speed of operations in a table. Indexes can be created using one or more columns, providing the basis for both…
OBIEE – Data Warehouse
The requirement to respond quickly is by effective and efficient use of data and information. “Data Warehouse” is a central repository of data that is organized by category to support the organization’s…
MySQL – ALTER Command
The MySQL ALTER command is very useful when you want to change a name of your table, any table field or if you want to add or delete an existing column in…
ggplot2 – Scatter Plots & Jitter Plots
Scatter Plots are similar to line graphs which are usually used for plotting. The scatter plots show how much one variable is related to another. The relationship between variables is…
MySQL – Transactions
A transaction is a sequential group of database manipulation operations, which is performed as if it were one single work unit. In other words, a transaction will never be complete…
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