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Protect SQL Databases with Dell EMC PowerProtect and DataDomain Under VMware

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Introduction We are now in the data era – data is growing at rapid space, being processed in different ways, and becoming more distributed across data centers and clouds. Thus databases are also growing and they are stored and protected in various ways depending on business objectives. As more organizations continue to move application and […]

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2020-08-10

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Question of the Day

STRING_AGG's behavior

Executing the following script (Sql Server 2022), you get the table t0 with 10 rows:
CREATE TABLE t0
( id     INT PRIMARY KEY
, field1 VARCHAR(1000)
, field2 VARCHAR(MAX));
INSERT INTO t0
SELECT
  gs.value
, REPLICATE ('X', 1000)
, REPLICATE ('Y', 1000)
FROM generate_series(1, 10, 1) gs;
GO
What happens if you execute the following statements?
  1. select STRING_AGG(field1, ';') within group (order by id)  from t0;
  2. select STRING_AGG(field2, ';') within group (order by id)  from t0;

See possible answers