The difference between a drought and a famine is down to man. Texas is in the middle of its worst drought on record right now but cowboys arenât starving â because Texas, and the US, have government and economy enough to ensure they donât.
Incremental Encoders. An encoder is an electrical mechanical device that converts linear or rotary displacement into digital or pulse signals. The most popular type of encoder is the optical encoder, which consists of a rotating disk, a light source, and a photo detector (light sensor).The disk, which is mounted on the rotating shaft, has patterns of opaque and transparent sectors coded into the disk (see Figure 1).he most popular type of encoder is the optical encoder, which consists of a rotating disk, a light source, and a photo detector (light sensor). The disk, which is mounted on the rotating shaft, has patterns of opaque and transparent sectors coded into the disk (see Figure 1).
It simply means the column uses the Identity(seed, increment) function to provide values for a primary key (usually). It is also known as Autonumber. The second line below is an example: It acts as a default value for the column that increments for each record.lag indicating an Identity Column-can be used as an auto-increment column (recommended for any table). it has many implications like being able to get the id of the last inserted row in a table using @@IDENTITY or SCOPE_IDENTITY() etc.