SQL Server Tutorials| Basics & Advance Concepts | Interview Question & Answer Series | SQL Server Tricks & Tips
Sometimes you need to export data from SQL Server tables, views or the result of any T-SQL query into excel file, reason could be anything such as MIS team need Sales data in excel file…
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Date data type allows you to store the date data in the database. It takes 3 bytes to store a date value. SYNTAX date The format of date is YYY-MM-DD, where YYYY is four digits…
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Assume that you have a table which contains alphabetic, numeric, alphanumeric string, and special characters and you are asked to fetch only alphanumeric string from those strings. Following is the sample table named Numbers which…
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FORMAT function is a Power BI text function in DAX, which converts a value to text according to the specified format. Syntax FORMAT(<value>, <format_string>) value is a value or expression that evaluates to a single…
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SQL Server indexes are used by queries to find data values quickly in tables and views. Basically it speed up the queries performance. You can also relate a SQL Server Indexes with any text book…
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SQL NULLIF expression compares two expression and returns a null value if the two specified expressions are equal, else it returns the first expression. NULLIFÂ expression is equivalent to a searched CASE expression in which…
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SQL STATISTICS IO is a set statement , when it is enabled it causes SQL Server to display information about the amount of disk activity generated by T- SQL statement. SYTANX SET STATISTICS IO {…
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The IS NULL is used in SQL to find a NULL value. It returns TRUE if a NULL value is found, otherwise it returns FALSE. SYNTAX SELECT col1, col2, .. FROM Table WHERE Expression IS…
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The IS NOT NULL is used in SQL to find a non-NULL value. It returns TRUE if a non-NULL value is found, otherwise it returns FALSE. SYNTAX SELECT col1, col2, .. FROM Table WHERE Expression…
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SQL Server update statement is used used to modify an existing records in a table, you can also update records in table based on some specific conditions. Following is the basic syntax of update statement….
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Sometimes, you need to store multi language or multilingual data in any table column. Inserting a multilingual data into column without following some basics rules, you see that when you select data from table, it…
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SQL RAND function is a mathematical function which returns a pseudo-random float value from 0 through 1, exclusive or a random value within any range. It can also take an optional seed parameter which is…
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Sometimes, you want to store the result of a stored procedure into table or temp table instead of returning the output. Storing output of stored procedure into table enables more option for you, such as…
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SQL delete statement is used to delete records from table based on specific conditions which are specified in where clause. Delete statement can also be used as Delete TOP, which also allows you to use…
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When you are required to import data received from different different file format such as .txt, .csv., or excel files, sometimes you see a white spaces along with the data, which may create a problem…
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Sometimes you need to format a date in specific format such as format a date time string YYYY-MM-DD hh:mm:ss. mmm to date MM:DD:YY. SQL Server provides you a various options that you can use to…
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Sometime you are required to validate the row counts for each tables in database. So getting a row counts for each tables either through using a loop on each table or go and get row…
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Object_ID is a SQL Server Metadata function which returns the database object identification number of a schema-scoped object. It can not be used for object that are not schema-scoped such as DDL triggers. If any…
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Dynamic data masking also known as DDM is a security feature in SQL Server which helps you to prevent the access of unauthorize users to sensitive data in the database. It was introduced in SQL…
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Collations in SQL Server provide sorting rules, case, and accent sensitivity properties for your data. You can easily find SQL collation at the server, database and column level using SQL Server System Catalog views, or…
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