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The basic difference between DDL and DML is the commands they provide . The DDL provides statement for the creation and deletion of tables, indexes, views etc. while the DML provides statements to enter, update, delete and perform complex queries on these tables.
Indexes and Registers ¦ Indexes: Are permanent topical collections of medical record data required by laws and logic to locate cases for record maintenance, statistics and research, e.g. MPI, physician, disease, procedure and surgery indexes. ¦ Registers: Are permanent chronological listings for maintaining certain statistics, e.g. surgical log, admission, inpatient, outpatient, and death registers.
There are indexes that cut across industries; there are indexes that deal with one industry only. Indexes include varying numbers of stocks.
Primary key is a type of unique index with no null constraint on the columns involved. There can only be one Primary key whereas you can create other unique indexes on the table.
The basic difference between DDL and DML is the commands they provide . The dml (data manipulation language) provides statements to enter, update, delete and perform complex queries on these tables while the ddl(data description language) provides statement for the creation and deletion of tables, indexes, views etc.
they are both reference works that reveal detailed information about resources. Indexes usually provide authors, titles or subjects of publications without comment, and abstracts offer a brief summary of content.
The Stock Market is considered to be ALL publicly traded securities. There are many types of indexes but 2 of the more popular ones are broad based indexes and narrow based indexes. A Broad based index, such as the S&P 500 and DJIA, is composed of a group of stocks that intend to reflect the performance of the entire stock market. A narrow based index, such as Technology and Biotech, measures the performance of a particular market segment or industry group. Hope this helps! Jennifer
When light waves pass through materials with different indexes of refraction, they bend at the interface between the two materials. This bending of light waves is known as refraction. The amount of bending depends on the difference in the indexes of refraction of the two materials.
The indexes in the library catalogue help users find the books they need quickly and easily.
Dow Jones Indexes was created in 1882.
Yes, DBMSs use indexes to improve the speed of data retrieval by providing faster access to specific columns or rows in a table. Indexes help to optimize query performance by creating a structure that enables the database system to locate data quickly. Additionally, indexes can enforce uniqueness constraints, accelerate sorting and grouping operations, and support foreign key relationships between tables.
Because