Matrix coefficients : BT.709 As you can see in "Format settings", "Format settings, ReFrames" shows that there is actually 3 ref ReFrames, but "Encoding settings" shows that parameter "ref" was set to "2". You can assign a value to a variable in the following three ways : Query: DECLARE two variables DECLARE AS INT, VARCHAR (10) Assigning a value to SQL Variable MediaInfo do not shows that "Format settings", "Format settings, ReFrames" set to 4.Query: Without ‘AS’ DECLARE VARCHAR (10) where is the truth? =) Why it shows that?Īnd even if I encode with manually set "ref" to "3". Here, after datatype we can use ‘=’ followed by value to be assigned Let’s have a look at all three ways in detail: During variable declaration using DECLARE keywordĭuring variable declaration using DECLARE keyword. SET can be used to assign values to the variable, post declaring a variable.Below are the different ways to assign values using SET:Įxample: Assigning a value to a variable using SET Sometimes we want to keep declaration and initialization separate. PRINT Assign a value to multiple variables using SET. Syntax: DECLARE, ,SET = (SELECT from where ) PRINT Assigning a value to a variable with a Scalar Subquery using SET Rule: One SET Keyword can be used to assign a value to only one variable. If the query returns zero rows, then the variable is set to EMPTY, i.e., NULL.Īssumption: Assume that we have the table as ‘Guru99’ with two columns as displayed below.A scalar query is a query with results as just one row and one column. at 22:05 Sorry, I was being deliberately cryptic, the main reason I asked was that as there are usually more than one format field names, I would have expected you to use Format/String, or Format/String1, instead. I support you could just pipe your command into Select-String like mediainfo.exe C:\Users\path.avi Select-String -Pattern 'Duration'. SET = (select Tutorial_name from Guru99 where Tutorial_ID = 5) PRINT 2: When subquery returns zero row as a result DECLARE VARCHAR (10) SET = (select Tutorial_name from Guru99 where Tutorial_ID = 3) We will use ‘Guru99’ table in the further tutorialsĮxample 1: When subquery return one row as a result. At first i would have converted this to a hashtable but since there are several Duration keys that would not have worked. PRINT this particular case, the variable value is EMPTY, i.e., NULL. PRINT Assigning a value to multiple variable using SELECT Below are different ways to assign a value using SELECT:Įxample: Assigning a value to a variable using SELECT Just like SET, we can also use SELECT to assign values to the variables, post declaring a variable using DECLARE. Syntax: DECLARE, _2 ,SELECT _1 = (SELECT from where ) PRINT Assigning the value to a variable with a Subquery using SELECT Rules: Unlike SET, SELECT can be used to assign a value to multiple variables separated by the comma. The scalar query is the query with the result as one row and one column. If the query returns zero rows, then the variable is EMPTY, i.e., NULL.Otherwise, the query will throw an error.
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