Passing variables between batch file and.sql file for mssql server. Ask Question 0. I am attempting to create a batch file in windows that will take a user's input, and pass that along to a sql file containing the following query, so that I can set a siteid, like in the following sql query. Sql sql-server variables batch-file.

Sqlcmd - Use with Scripting Variables • • 6 minutes to read • Contributors • In this article APPLIES TO: SQL Server Azure SQL Database Azure SQL Data Warehouse Parallel Data Warehouse Variables that are used in scripts are called scripting variables. Scripting variables enable one script to be used in multiple scenarios. For example, if you want to run one script against multiple servers, instead of modifying the script for each server, you can use a scripting variable for the server name. By changing the server name supplied to the scripting variable, the same script can be executed on different servers. Scripting variables can be defined explicitly by using the setvar command, or implicitly by using the sqlcmd-v option. This topic also includes examples defining environmental variables at the Cmd.exe command prompt by using SET.

Setting Scripting Variables by Using the setvar Command The setvar command is used to define scripting variables. Variables that are defined by using the setvar command are stored internally. Scripting variables should not be confused with environment variables that are defined at the command prompt by using SET. If a script references a variable that is not an environment variable or is not defined by using setvar, an error message is returned and the execution of the script will stop. For more information, see the -b option in. Variable Precedence (Low to High) If more than one type of variable has the same name, the variable with the highest precedence is used.

• System level environmental variables • User level environmental variables • Command shell ( SET X=Y) set at command prompt before starting sqlcmd • sqlcmd-v X=Y •:Setvar X Y. Note To view the environmental variables, in Control Panel, open System, and then click the Advanced tab.

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Implicitly Setting Scripting Variables When you start sqlcmd with an option that has a related sqlcmd variable, the sqlcmd variable is set implicitly to the value that is specified by using the option. In the following example, sqlcmd is started with the -l option. This implicitly sets the SQLLOGINTIMEOUT variable. C: > sqlcmd -l 60 You can also use the -v option to set a scripting variable that exists in a script.

In the following script (the file name is testscript.sql), ColumnName is a scripting variable. USE AdventureWorks2012; SELECT x.$(ColumnName) FROM Person.Person x WHERE x.BusinessEntityID. Note If no value is assigned to a sqlcmd environment variable, the variable is removed. Using:setvar VarName without a value clears the variable. Consider the following guidelines when you specify values for scripting variables: • Variable values that are defined by using setvar or the -v option must be enclosed by quotation marks if the string value contains spaces.

• If quotation marks are part of the variable value, they must be escaped. For example:: setvar MyVar 'spac'e'. Guidelines for Cmd.exe SET Variable Values and Names Variables that are defined by using SET are part of the Cmd.exe environment and can be referenced by sqlcmd. Consider the following guidelines: • Variable names must not contain white space characters or quotation marks. • Variable values may contain spaces or quotation marks.

Sqlcmd Scripting Variables Variables that are defined by sqlcmd are known as scripting variables. The following table lists sqlcmd scripting variables. Note The -X option disables the startup script feature. Variable expansion The following example shows working with data in the form of a sqlcmd variable. USE AdventureWorks2012; CREATE TABLE AdventureWorks2012.dbo.VariableTest ( Col1 nvarchar(50) ); GO Insert one row into Col1 of dbo.VariableTest that contains the value $(tablename).

INSERT INTO AdventureWorks2012.dbo.VariableTest(Col1) VALUES('$(tablename)'); GO At the sqlcmd prompt, when no variable is set equal to $(tablename), the following statements return the row. C: > sqlcmd >1 SELECT Col1 FROM dbo.VariableTest WHERE Col1 = '$(tablename)'; >2 GO >3 SELECT Col1 FROM dbo.VariableTest WHERE Col1 = N'$(tablename)'; >4 GO Here is the result set. >1 Col1 >2 ------------------ >3 $(tablename) >4 >5 (1 rows affected) Given the variable MyVar is set to $(tablename). >6:setvar MyVar $(tablename) These statements return the row and also return the message 'tablename' scripting variable not defined.' >6 SELECT Col1 FROM dbo.VariableTest WHERE Col1 = '$(tablename)'; >7 GO >1 SELECT Col1 FROM dbo.VariableTest WHERE Col1 = N'$(tablename)'; >2 GO These statements return the row. >1 SELECT Col1 FROM dbo.VariableTest WHERE Col1 = '$(MyVar)'; >2 GO >1 SELECT Col1 FROM dbo.VariableTest WHERE Col1 = N'$(MyVar)'; >2 GO See Also.

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