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frank@ZZHPC:~/download$ wget https://dlcdn.apache.org/spark/spark-4.1.1/spark-4.1.1-bin-hadoop3.tgz frank@ZZHPC:~/download$ tar -xzf spark-4.1.1-bin-h
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posted @ 2026-01-09 22:16
ZhangZhihuiAAA
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I have docker running on my Windows. A Postgres database is running in a docker container. I can connect to the Postgres using hostname 'localhost' an
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posted @ 2026-01-09 10:09
ZhangZhihuiAAA
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The "Ghost" Error (IntelliSense) SSMS has a background process called IntelliSense that parses your code as you type to provide those red squiggly und
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posted @ 2026-01-08 17:09
ZhangZhihuiAAA
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CREATE PROCEDURE Purchasing.uspVendorALLInfo WITH EXECUTE AS CALLER AS SET NOCOUNT ON; SELECT v.Name AS Vendor, p.Name AS 'Product Name', v.CreditRati
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posted @ 2026-01-08 16:14
ZhangZhihuiAAA
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https://learn.microsoft.com/en-us/sql/samples/adventureworks-install-configure?view=sql-server-ver17&tabs=ssms Download the bak files from https://lea
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posted @ 2026-01-08 12:38
ZhangZhihuiAAA
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In SQL Server, the fundamental difference between varchar and nvarchar is how they store data and which characters they can handle. The "n" in nvarcha
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posted @ 2026-01-08 11:47
ZhangZhihuiAAA
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In SQL Server, SET NOCOUNT ON; is a command used to stop the message that shows the number of rows affected by a Transact-SQL statement from being ret
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posted @ 2025-12-29 19:32
ZhangZhihuiAAA
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https://learn.microsoft.com/en-us/sql/linux/quickstart-install-connect-docker?view=sql-server-ver16&preserve-view=true&tabs=cli&pivots=cs1-powershell
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posted @ 2025-12-29 15:49
ZhangZhihuiAAA
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In modern Hadoop environments like your 3.4.2 setup, there is functionally no difference between the two commands when interacting with HDFS. However,
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posted @ 2025-12-28 21:37
ZhangZhihuiAAA
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https://hive.apache.org/docs/latest/admin/adminmanual-metastore-3-0-administration/ You can find an E/R diagram for the metastore here. Download Stand
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posted @ 2025-12-28 21:26
ZhangZhihuiAAA
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