SQL adheres to the ANSI SQL standard, ensuring a degree of portability and compatibility across different database platforms. Data definition language is used to create, drop, alter, and truncate in a database. Data manipulation language is used to insert, update, and delete data in the data...
What is the difference between ls() command and objects() command in R - They are actually no difference between the two commands as they give the same result that is the number of objects in the current workspace. If we have five different type of objec
Difference between a table scan and an index scan in SQL Server? (answer) What is the difference between UNION and UNION ALL in SQL? (answer) The difference between TRUNCATE and DELETE in SQL? (answer) The difference between self and equi-join in SQL? (answer) Top 5 SQL and Database ...
Alter foreign key column to not Allow null question Alter Multiple Procedures with One sql script Alter Stored Procedure is taking huge time in sql server Alter Table Add Column if Not Exists to update Schema Modification Script Alter Table add Column - How do you add a column after say the ...
but as far as I know there isn't in t-sql/msss; but correct me if I'm wrong)...
Difference between backup size and data size Difference between create table and alter table – upgrade process. difference between developer edition and enterprise or standard edition Difference between permission to connect database engine (grant,deny ) & Login(enabled ,disabled) Difference between ...
drop table if exists #temp select 1 id into #temp this is what we are currently doing create unique clustered index index1 on #temp(id) as opposed to ALTER TABLE #temp ADD CONSTRAINT [PK_Individual_CustomerID] PRIMARY KEY CLUSTERED ( id ASC ) ...
improve your SQL query performance is very important while working in a database and SQL and that's why you will find many questions based upon indexes on Programming Job interviews. One of such frequently asked SQL questions is the realdifference between table scan, index scan, and index ...
CREATE - to create objects in the database ALTER - alters the structure of the database DROP - delete objects from the database TRUNCATE - remove all records from a table, including all spaces allocated for the records are removed COMMENT - add comments to the data dictionary ...
SQL> DROP TABLE "START"; Table dropped 关键词同样是在Oracle中具有特殊意义的词汇,但是其可以用作重定义(redefine)。Oracle文档介绍这些关键词可能在今后的版本中变成保留词。以下为Oracle 10g中关键词的列表: Oracle Keywords Pl/SQL中还有部分的保留词(PL/SQL Reserved Words),在嵌入SQL语句需要对这些词汇特殊处...