Difference between numeric, float and decimal in SQL Server
Jun 29, 2009 · What are the differences between numeric, float and decimal datatypes and which should be used in which situations? For any kind of financial transaction (e.g. for salary field), which one is …
.net - C# Equivalent of SQL Server DataTypes - Stack Overflow
SQL Server and the .NET Framework are based on different type systems. For example, the .NET Framework Decimal structure has a maximum scale of 28, whereas the SQL Server decimal and …
What is a SQL JOIN, and what are the different types?
Types of JOINS: Concern to RDBMS there are 5-types of joins: Equi-Join: Combines common records from two tables based on equality condition. Technically, Join made by using equality-operator (=) to …
Pandas dataframe to Spark dataframe "Can not merge type error"
raise TypeError("Can not merge type %s and %s" % (type(a), type(b))) TypeError: Can not merge type <class 'pyspark.sql.types.DoubleType'> and <class 'pyspark.sql.types.StringType'> Here is an …
Local and global temporary tables in SQL Server
Feb 23, 2014 · There are two types of temporary tables: local and global. Local temporary tables are visible only to their creators during the same connection to an instance of SQL Server as when the …
jdbc: Get the SQL Type Name from java.sql.Type code
To specifically answer "Get the SQL Type Name from java.sql.Type code", if you are using a version of java that can do reflection, here is a small utility method that pretty much does the same thing:
What's best SQL datatype for storing JSON string?
Feb 9, 2012 · Update: SQL Server 2016 will have native JSON support - a new JSON datatype (which is based on nvarchar) will be introduced, as well as a FOR JSON command to convert output from a …
Interpreting type codes in sys.objects in SQL Server
Going to the best SQL Server source for this info: sys.objects (Transact-SQL) it doesn't mention any table to join to. I can't say that I have ever noticed a codes table to join to for any of the systems …
Difference between different types of SQL? - Stack Overflow
Aug 25, 2009 · What are the differences between all of the different types of SQL? I hear of PostgreSQL, SQLite, MySQL, SQL, .... What are the differences between them?
python - Pyspark StructType is not defined - Stack Overflow
Jun 18, 2015 · from pyspark.sql.types import StructType That would fix it but next you might get NameError: name 'IntegerType' is not defined or NameError: name 'StringType' is not defined ..