如果表达式包含一个子查询,Azure Databricks 将引发INVALID_DEFAULT_VALUE.SUBQUERY_EXPRESSION错误。 示例 SQL复制 -- Create a variable with a default>DECLAREVARIABLEmyvarINTDEFAULT5; >VALUES(myvar); 5-- Setting a variable>SETVARmyvar = (SELECTsum(c1)FROMVALUES(1), (2)AST(c1); >VALUES(myvar); 3...
Defines the initial value of the variable after creation.default_expression must be castable todata_type. If no default is specified, the variable is initialized withNULL. If expression includes a subqueryDatabricksraises aINVALID_DEFAULT_VALUE.SUBQUERY_EXPRESSIONerror. Examples SQL -- Create a v...
SQL コピー -- Create a variable with a default > DECLARE VARIABLE myvar INT DEFAULT 5; > VALUES (myvar); 5 -- Setting a variable > SET VAR myvar = (SELECT sum(c1) FROM VALUES(1), (2) AS T(c1); > VALUES (myvar); 3 -- Variables are the outermost scope. > SELECT myvar, ...
If expression includes a subquery Azure Databricks raises a INVALID_DEFAULT_VALUE.SUBQUERY_EXPRESSION error. Examples SQL Kopiraj -- Create a variable with a default > DECLARE VARIABLE myvar INT DEFAULT 5; > VALUES (myvar); 5 -- Setting a variable > SET VAR myvar = (SELECT sum(c1) FROM...
Databricks SQL Databricks Runtime 14.1 and above Creates a session private, temporary variable you can reference wherever a constant expression can be used. You can also use variables in combination with theIDENTIFIER clauseto parameterize identifiers in SQL statements. ...
Applies to: Databricks SQL Databricks Runtime 14.1 and above Creates a session private, temporary variable you can reference wherever a constant expression can be used. You can also use variables in combination with the IDENTIFIER clause to parameterize identifiers in SQL statements. Variables are mod...
Applies to: Databricks SQL Databricks Runtime 14.1 and above Creates a session private, temporary variable you can reference wherever a constant expression can be used. You can also use variables in combination with the IDENTIFIER clause to parameterize identifiers in SQL statements. Variables are mod...
如果表達式包含子查詢 Azure Databricks,就會引發INVALID_DEFAULT_VALUE。SUBQUERY_EXPRESSION錯誤。 範例 SQL複製 -- Create a variable with a default>DECLAREVARIABLEmyvarINTDEFAULT5; >VALUES(myvar); 5-- Setting a variable>SETVARmyvar = (SELECTsum(c1)FROMVALUES(1), (2)AST(c1); >VALUES(myvar); 3-...
DECLARE VARIABLE Learn Masuk Azure Produk Arsitektur Kembangkan Pelajari Azure Pemecahan Masalah Sumber PortalAkun gratis Beberapa bagian dari topik ini mungkin diterjemahkan oleh komputer atau AI. CREATE SCHEMA CREATE SERVER CREATE SHARE CREATE STREAMING TABLE...
Applies to:Databricks Runtime 14.1 and above Creates a session private, temporary variable you can reference wherever a constant expression can be used. You can also use variables in combination with theIDENTIFIER clauseto parameterize identifiers in SQL statements. ...