SQL Server Management Studio. Update T1 set T1.Field1 = y where T1.Field1= x Would this work?How do you specify a different port number in SQL Management Studio?Solutions for INSERT OR UPDATE on SQL ServerSQL Formatter for SQL Management Studiohow can I Update top 100 records in sql serverMySQL - UPDATE query based on SELECT Querysql server invalid object name - but tables are listed in SSMS tables listUpdate a table using JOIN in SQL Server?SQL Server: How to Join to first rowHow do I UPDATE from a SELECT in SQL Server?Where is SQL Server Management Studio 2012?
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SQL Server Management Studio. Update T1 set T1.Field1 = y where T1.Field1= x Would this work?
How do you specify a different port number in SQL Management Studio?Solutions for INSERT OR UPDATE on SQL ServerSQL Formatter for SQL Management Studiohow can I Update top 100 records in sql serverMySQL - UPDATE query based on SELECT Querysql server invalid object name - but tables are listed in SSMS tables listUpdate a table using JOIN in SQL Server?SQL Server: How to Join to first rowHow do I UPDATE from a SELECT in SQL Server?Where is SQL Server Management Studio 2012?
Update T1 set T1.Field1 = y where T1.Field1 = x
Would this syntax work?
I want to update the field to equal 40 where that field is currently equal to 50. This would update several rows when run the first time.
I would hope that it would update zero rows when attempting to run it the second time.
sql syntax sql-update ssms
asked Mar 7 at 9:57
Dasal KalubowilaDasal Kalubowila
5312
|
show 2 more comments
Update T1 set T1.Field1 = y where T1.Field1 = x
Would this syntax work?
I want to update the field to equal 40 where that field is currently equal to 50. This would update several rows when run the first time.
I would hope that it would update zero rows when attempting to run it the second time.
sql syntax sql-update ssms
asked Mar 7 at 9:57
Dasal KalubowilaDasal Kalubowila
5312
2
Yes, it should work
– dassoun
Mar 7 at 9:59
1
...and it'll update 0 rows on subsequent executions.
– Salman A
Mar 7 at 10:01
1
Note that tables have columns, not fields.
– jarlh
Mar 7 at 10:10
1
Bear in mind that updates affecting 0 rows are still interesting. Because e.g. they'll still cause triggers to fire.
– Damien_The_Unbeliever
Mar 7 at 10:37
1
field is an intersection of row and column, if a table has 10 rows and 10 columns then there is 100 fields
– Ajan Balakumaran
Mar 7 at 10:38
|
show 2 more comments
Update T1 set T1.Field1 = y where T1.Field1 = x
Would this syntax work?
I want to update the field to equal 40 where that field is currently equal to 50. This would update several rows when run the first time.
I would hope that it would update zero rows when attempting to run it the second time.
sql syntax sql-update ssms
asked Mar 7 at 9:57
Dasal KalubowilaDasal Kalubowila
5312
Update T1 set T1.Field1 = y where T1.Field1 = x
Would this syntax work?
I want to update the field to equal 40 where that field is currently equal to 50. This would update several rows when run the first time.
I would hope that it would update zero rows when attempting to run it the second time.
sql syntax sql-update ssms
sql syntax sql-update ssms
asked Mar 7 at 9:57
Dasal KalubowilaDasal Kalubowila
5312
asked Mar 7 at 9:57
Dasal KalubowilaDasal Kalubowila
5312
asked Mar 7 at 9:57
Dasal KalubowilaDasal Kalubowila
5312
asked Mar 7 at 9:57
Dasal KalubowilaDasal Kalubowila
5312
asked Mar 7 at 9:57
Dasal KalubowilaDasal Kalubowila
5312
5312
2
Yes, it should work
– dassoun
Mar 7 at 9:59
1
...and it'll update 0 rows on subsequent executions.
– Salman A
Mar 7 at 10:01
1
Note that tables have columns, not fields.
– jarlh
Mar 7 at 10:10
1
Bear in mind that updates affecting 0 rows are still interesting. Because e.g. they'll still cause triggers to fire.
– Damien_The_Unbeliever
Mar 7 at 10:37
1
field is an intersection of row and column, if a table has 10 rows and 10 columns then there is 100 fields
– Ajan Balakumaran
Mar 7 at 10:38
|
show 2 more comments
2
Yes, it should work
– dassoun
Mar 7 at 9:59
1
...and it'll update 0 rows on subsequent executions.
– Salman A
Mar 7 at 10:01
1
Note that tables have columns, not fields.
– jarlh
Mar 7 at 10:10
1
Bear in mind that updates affecting 0 rows are still interesting. Because e.g. they'll still cause triggers to fire.
– Damien_The_Unbeliever
Mar 7 at 10:37
1
field is an intersection of row and column, if a table has 10 rows and 10 columns then there is 100 fields
– Ajan Balakumaran
Mar 7 at 10:38
2
2
Yes, it should work
– dassoun
Mar 7 at 9:59
Yes, it should work
– dassoun
Mar 7 at 9:59
1
1
...and it'll update 0 rows on subsequent executions.
– Salman A
Mar 7 at 10:01
...and it'll update 0 rows on subsequent executions.
– Salman A
Mar 7 at 10:01
1
1
Note that tables have columns, not fields.
– jarlh
Mar 7 at 10:10
Note that tables have columns, not fields.
– jarlh
Mar 7 at 10:10
1
1
Bear in mind that updates affecting 0 rows are still interesting. Because e.g. they'll still cause triggers to fire.
– Damien_The_Unbeliever
Mar 7 at 10:37
Bear in mind that updates affecting 0 rows are still interesting. Because e.g. they'll still cause triggers to fire.
– Damien_The_Unbeliever
Mar 7 at 10:37
1
1
field is an intersection of row and column, if a table has 10 rows and 10 columns then there is 100 fields
– Ajan Balakumaran
Mar 7 at 10:38
field is an intersection of row and column, if a table has 10 rows and 10 columns then there is 100 fields
– Ajan Balakumaran
Mar 7 at 10:38
|
show 2 more comments
1 Answer
1
active
oldest
votes
If I put this in simple words
Update T1 set T1.Field1 = y where T1.Field1 = x
Update T1 set T1.Field1 = 40 where T1.Field1 = 50
At first when your table has the value 50 for field1 and all those values will be updated as 40 when you run the update statement.
When you run this second time, now the column Field1 has already been updated as 40 and it's not 50 anymore so nothing will get affected since the update statement only updates 50 as 40.
answered Mar 7 at 10:21
Ajan BalakumaranAjan Balakumaran
1,057412
add a comment |
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1 Answer
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votes
If I put this in simple words
Update T1 set T1.Field1 = y where T1.Field1 = x
Update T1 set T1.Field1 = 40 where T1.Field1 = 50
At first when your table has the value 50 for field1 and all those values will be updated as 40 when you run the update statement.
When you run this second time, now the column Field1 has already been updated as 40 and it's not 50 anymore so nothing will get affected since the update statement only updates 50 as 40.
answered Mar 7 at 10:21
Ajan BalakumaranAjan Balakumaran
1,057412
add a comment |
If I put this in simple words
Update T1 set T1.Field1 = y where T1.Field1 = x
Update T1 set T1.Field1 = 40 where T1.Field1 = 50
At first when your table has the value 50 for field1 and all those values will be updated as 40 when you run the update statement.
When you run this second time, now the column Field1 has already been updated as 40 and it's not 50 anymore so nothing will get affected since the update statement only updates 50 as 40.
answered Mar 7 at 10:21
Ajan BalakumaranAjan Balakumaran
1,057412
add a comment |
If I put this in simple words
Update T1 set T1.Field1 = y where T1.Field1 = x
Update T1 set T1.Field1 = 40 where T1.Field1 = 50
At first when your table has the value 50 for field1 and all those values will be updated as 40 when you run the update statement.
When you run this second time, now the column Field1 has already been updated as 40 and it's not 50 anymore so nothing will get affected since the update statement only updates 50 as 40.
answered Mar 7 at 10:21
Ajan BalakumaranAjan Balakumaran
1,057412
If I put this in simple words
Update T1 set T1.Field1 = y where T1.Field1 = x
Update T1 set T1.Field1 = 40 where T1.Field1 = 50
At first when your table has the value 50 for field1 and all those values will be updated as 40 when you run the update statement.
When you run this second time, now the column Field1 has already been updated as 40 and it's not 50 anymore so nothing will get affected since the update statement only updates 50 as 40.
answered Mar 7 at 10:21
Ajan BalakumaranAjan Balakumaran
1,057412
edited Mar 7 at 10:34
answered Mar 7 at 10:21
Ajan BalakumaranAjan Balakumaran
1,057412
answered Mar 7 at 10:21
Ajan BalakumaranAjan Balakumaran
1,057412
answered Mar 7 at 10:21
Ajan BalakumaranAjan Balakumaran
1,057412
1,057412
add a comment |
add a comment |
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2
Yes, it should work
– dassoun
Mar 7 at 9:59
1
...and it'll update 0 rows on subsequent executions.
– Salman A
Mar 7 at 10:01
1
Note that tables have columns, not fields.
– jarlh
Mar 7 at 10:10
1
Bear in mind that updates affecting 0 rows are still interesting. Because e.g. they'll still cause triggers to fire.
– Damien_The_Unbeliever
Mar 7 at 10:37
1
field is an intersection of row and column, if a table has 10 rows and 10 columns then there is 100 fields
– Ajan Balakumaran
Mar 7 at 10:38