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depending on your database vendor, you should perform a loop of all tables and their columns and issue a dynamic SQL.
for curr_table in all tables
loop
table_columns = get_columns();
dynamically execute "select table_columns from curr_table";
end loop;
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What do the rows in the period table tell you?
The columns in this table indicate that the elements in a particular row are all part of a family of elements sharing certain similarities. The horizontal rows denote the orbital letter (the highest one) in which all elements have in common.
What do the rows mean on the periodic table mean?
The elements are arranged in horizontal rows and vertical columns, the rows are called periods and the columns are called groups or families. All the elements of the same group have similar chemical and physical properties. The periods all show a similar pattern, with metallic elements on the left transitioning to nonmetallic elements on the right of the periodic table.
What are the Building blocks of a database?
Every database should contains values/datas represented in records(rows) and fields(columns). And records and fields stored in a table. So the main building blocks of a database is Table.
Why where the lanthanide and actinide elements droped out of order on the periodic tabel?
The vertical columns of the periodic table are arranged to contain elements that have similar chemical and physical properties.The two rows at the bottom (called the Lanthanide and Actinide series) are elements that would all fit into group IIIB, in periods (horizontal rows) 6 and 7. since there is only one spot on the chart for all the elements in each series, they are listed separately at the bottom of the table.
What are the differences between a period and a group on the periodic table?
A group is a horizontal row(going across from left to right) on the periodic table. A period is a vertical column(going up and down). Both are used to give information about an element. In particular, together, they can indicate the number and orbital location of the element's valence electrons (for all but the transition metals).
How do you select all columns of all rows from a table?
You select all columns of all rows from a table with the select * from table_name sql statement. Be careful, this can potentially be a very expensive, poor performance, network intensive type of operation - it is better to select only the columns and rows needed.
How are all rows in a table selected?
All rows & columns in a table can be selected by using the below query Select * from table_name If you do not have any where condition in the query then all rows will be selected.
When selecting a data source for a pie chart select all rows and columns including total rows and columns?
FALSE
What is a chart that list all elements into rows and columns?
A periodic table
Sql command to retrive all data froma table?
The SQL command that can be used to retrieve all data from a table is the SELECT Ex: Let us say we have a table called employee_master which contains 3 columns emp_name, emp_number, date_of_joining you can retrieve all the data by using the below command SELECT * FROM employee_master or SELECT emp_name, emp_number, date_of_joining FROM employee_master
What are the rows of a periodic table called?
As with any grid, the periodic table has rows running left to right, and columns running up and down. The rows are called PERIODS and the columns are called GROUPS.
What is a ''times table''?
A times table is a table of all multiplcation facts.
What is a relational operator that yields values from all rows in a table is called?
'select' operator
What is a table in data?
A table is a means of arranging data in rows and columns. The use of tables is pervasive throughout all communication, research and data analysis.
What do the rows in the period table tell you?
The columns in this table indicate that the elements in a particular row are all part of a family of elements sharing certain similarities. The horizontal rows denote the orbital letter (the highest one) in which all elements have in common.
How do you select all columns and rows that have data in them within excel?
Press the F5 key. Then press click Special on the dialog box that opens. You will then be able to select types of data and formulas to find and be able to select them.
What does projection mean in Oracle?
Projection in Oracle is simply the fields (or columns) you wish to use when building a SELECT query. It is a subset of columns in a table. A projection is nothing but a named list of columns, which you can make use of in your application. Projections have no impact on business rules, they are purely for the use of the user interface. For example: SELECT title, author FROM books; In this case, "title" and "author" would be your projection. Projection means to get data of particular columns in output instead of a whole row or record. In other words, instead of listing values of all the columns for the records if we list values of only particular columns (and not all the columns) then it is known as projection. Foe example: Table Student Roll_No Name Stream Marks 1 ABC Science 590 2. XYZ Commerce 450 Here, query for projection will be: Select Roll_No, Name from Student ; and Output will be: Roll_No Name 1 ABC 2 XYZ or Example: select roll_no where marks>400; ------------------------------------------------------------------------- whereas the selection will be: Select * from Student or Select * from Student where marks > 400 here all the rows and columns of the table will get printed depending on the condition given.
