Looking for Anz Sql server job? Prepare by practicing Anz Sql server job interview questions and answers page designed by wisdom jobs professional experts. The basic skills of a Anz Sql server developer includes, Reviewing query performance and optimizing code, Writing queries used for front-end applications (desktop applications or cloud apps, websites), Data modeling to envisage database structure, Coding and scheming of database tables to store the application’s data, Working with application developers to make optimized queries, Creating database triggers for computerization, e.g., automatic email notifications, Creating table indexes to enhance database performance, stored procedures, Programming views, and functions etc. There is a huge demand for Anz Sql server jobs in famous cities like Mumbai, Kolkata, Pune, Hyderabad Delhi etc.
A foreign key is one table which can be related to the primary key of another table. Relationship needs to be created between two tables by referencing foreign key with the primary key of another table.
Normalization is the process of minimizing redundancy and dependency by organizing fields and table of a database. The main aim of Normalization is to add, delete or modify field that can be made in a single table.
Self-join is set to be query used to compare to itself. This is used to compare values in a column with other values in the same column in the same table. ALIAS ES can be used for the same table comparison.
There are many ways to find second highest salary of Employees in SQ. You can either use SQL Join or Subquery to solve this problem.
Here is SQL query using Subquery :
Select MAX(Salary) from table1 WHERE Salary NOT IN ( select MAX(Salary)
TRUNCATE removes all the rows from the table, and it cannot be rolled back. DROP command removes a table from the database and operation cannot be rolled back.
Aggregate functions are used to evaluate mathematical calculation and return single values. This can be calculated from the columns in a table. Scalar functions return a single value based on the input value.
Aggregate – max(), count – Calculated with respect to numeric.
Scalar – UCASE(), NOW() – Calculated with respect to strings.
LIKE operator is used for pattern matching, and it can be used as -.
% – Matches zero or more characters.
_(Underscore) – Matching exactly one character.
There are multiple approaches with which a developer can ensure the safety and security of a SQL server. Some of them might be common usage while others can be more technically oriented.
Every time an event with a table occurs like, insert, update or delete, a batch of SQL code can be executed with an entity called Trigger. They are managed by DBMS. Triggers can also be utilized to execute a stored procedure.
Triggers available in SQL server are listed below:
This is the basic SQL Server Interview Questions asked in an interview. Views are the most beneficial entity for an SQL server developer. There is a whole lot of complexity involved in the database schema. At the same time, customizing the data for a particular set of users can be a tedious task, which is equally complex as database schema design. These types of complexity can be abstract away with a View. They provide a mechanism to control access to specific rows and columns. Thus, the performance of a database can be improved significantly by aggregating the data.
It is a set of technologies for copy and distributes data and database objects from one database to another. Synchronize the data can also be achieved with replication to maintain consistency. Replication can be used to distribute data to various locations and to remote or mobile users over the certain medium of internet. Multiple servers having data can be synchronized with the replication process using a replica set. Thus, reading capacity can be enhanced and users can be provided with a choice to selecting among different server to perform read-write operations.
There is a command called ‘CREATEDATABASE’, it can be utilized to create any database on the SQL server.
Its syntax is:
CREATE DATABASE database_name
Example- “Test” database can be created to CREATE DATABASE Test
There are various merits and demerits of index usage in SQL server. Some of them can cite as:
Some disadvantages can be:
There are the certain set of rules which would decide how data needs to be sorted and compared in a database. These rules can be referred to as Collation. Example – Character data is sorted using rules that defines the right character sequence, with an option for specifying case sensitivity, character width etc. Collation is predefined in SQL server, which would decide how data in SQL server are stored and retrieved.
There are various collations that exist in SQL server, but 2 are main:
Where CI is case insensitive and CS is case sensitive. So, by default collation is case insensitive, thus all database in it is also case-insensitive.
This is the frequently asked SQL Server Interview Questions in an interview. A cursor is a database object, which can utilize to retrieve the data, one row at a time from the result set. When data needs to be updated row-by-row, cursors can be very handy. The cursor life cycle consists of mainly 5 steps.
Types of a cursor are:
A UNION select rows whereas a JOIN selects columns from two or more tables. Both can be used to combine data from multiple tables. In a nutshell, JOIN combines data into new columns, whereas UNION combines data into new rows.
Anz Sql Server Related Interview Questions
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|SQL Server 2005 Interview Questions||SAS Programming Interview Questions|
|SSIS(SQL Server Integration Services) Interview Questions||SSRS(SQL Server Reporting Services) Interview Questions|
|SQL Server Management Studio Interview Questions||SQL Server Analysis Services (SSAS) Interview Questions|
|SQL Server Replication Interview Questions||Sql Server Dba Interview Questions|
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Anz Sql Server Related Practice Tests
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|SQL Server 2005 Practice Tests||SAS Programming Practice Tests|
|SSIS(SQL Server Integration Services) Practice Tests||SSRS(SQL Server Reporting Services) Practice Tests|
|SQL Server Management Studio Practice Tests|
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