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The UNION statement in SQL is used to join to result sets that have the same number and type of columns. The UNION statement by default will eliminate duplicate rows (where all columns are the same). If you know that you will not have this condition, or it is not desired to get a DISTINCT recordset back, then use the UNION ALL statement (this will help with performance also).

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What is the difference between division of labor by product and the division of labor by process?

division of labour by product is people who exchange things for money and use the money to buy goods and services therefore division of labour by process is organising production in stages or process


What is meaning by LPO in construction field?

In the construction field, LPO stands for "Labor Purchase Order." It is a document used to authorize and formalize the purchase of labor services for a specific project. The LPO outlines the scope of work, rates, duration, and payment terms, ensuring clarity and agreement between the contractor and the labor provider. This helps in managing labor costs and resources effectively throughout the construction process.


What is the difference between traditional and modern structures?

The main difference between traditional and modern buildings is in their manufacturing Modern Buildings are designed and manufactured off-site and assembled on-site, whereas traditional buildings are manufactured using mortar and cement on-site. Modern buildings are cost-effective as well as environmentally friendly, as they are constructed in a controlled environment with correct precision and accuracy, thus reducing the labor cost as well as the utility of the raw materials. Traditional Buildings are not that much cost-effective, as on-site construction require high labour as well as as raw materials.


What is the difference between OSHA and ASME?

ANSI = American National Standards Institute ASME - American Society of Mechanical Engineers ANSI is mainly a standards-keeping institution. ASME issues standards, but has other activities also (they publish a magazine, for instance).


How much to knock out A wall and install a sliding glass door?

The cost to knock out a wall and install a sliding glass door varies. The cost is determined by the cost of materials, and the cost of labor. A professional can give an accurate estimate for the deconstruction and install.

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What is the difference between social legislation and labor legislation?

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Information of free labor vs slave labor?

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What is the difference between slave labor and wage labor?

Abraham Lincoln thought the difference was only that wage labor was temporary and slavery was permanent.


What professional bodies represent employees?

Professional bodies that represent employees include labor unions, trade associations, and employee advocacy organizations. These organizations typically work to ensure fair labor practices, negotiate on behalf of workers for benefits and wages, and provide support and resources to their members.


What is the difference between the marginal product of labor and the marginal revenue product of labor?

moarginal product of labor


What do you mean by labor cost variance?

Labor cost variance means the difference between standard labor cost and actual labor cost.


What is the difference between labor and labor in economics?

none - labour is the British spelling of the American word, labor, as is harbour, rumour, neighbour, honour and colour.


What is the difference between a labor market and a factory market?

The primary difference between product markets and factor markets is that factors of production like labor and capital are part of factor markets and product markets are markets for goods.


How does the category of semi-skilled labor differ from unskilled labor?

There is a difference between semi-skilled labor and unskilled labor. Semi-skilled labor requires some training. Unskilled labor does not require the same type of training.


What are the two variances between the actual cost and the standard cost for direct labor?

The two variances between the actual cost and the standard cost for direct labor are the labor rate variance and the labor efficiency variance. The labor rate variance measures the difference between the actual hourly wage paid and the standard wage expected, multiplied by the actual hours worked. The labor efficiency variance assesses the difference between the actual hours worked and the standard hours allowed for the actual production, valued at the standard hourly rate. These variances help businesses analyze their labor costs and operational efficiency.


What is the difference between a japan browning and belgium browning?

Built to the same specs. Labor is cheaper in Japan.


What is the difference between enterprise and labor?

labour is where someone gives birth to a baby in hospital not sure about enterprise