How do I remove a space in SQL?
SQL Server TRIM() Function
The TRIM() function removes the space character OR other specified characters from the start or end of a string. By default, the TRIM() function removes leading and trailing spaces from a string. Note: Also look at the LTRIM() and RTRIM() functions.
What is space in SQL?
SPACE() : This function in SQL Server helps to return a string that has a specified number of spaces. This function is also available in MYSQL with the same name.
How do you release free space in SQL?
To shrink a file in SQL Server, we always use DBCC SHRINKFILE() command. This DBCC SHRINKFILE() command will release the free space for the input parameter.
- Free space in Data file or Log file.
- Heavy Transaction Log data file.
- Increasing Log file Size and not shrinking due to heavy transaction stuck.
How do I increase SQL database space?
Expand Databases, right-click the database to increase, and then click Properties. In Database Properties, select the Files page. To increase the size of an existing file, increase the value in the Initial Size (MB) column for the file. You must increase the size of the database by at least 1 megabyte.
How do I remove a junk character in SQL?
- DECLARE @I INT.
- Set @I=0.
- WHILE @I<256 –check entire extended ascii set.
- if (@i between 128 and 255)
- If (@i not in (169,153,174))
- SELECT @strIn=REPLACE(@strIn, char(@i), ”) –this replaces the current char with a space.
What are the after triggers?
Explanation: The triggers run after an insert, update or delete on a table. They are not supported for views. … Explanation: AFTER TRIGGERS can be classified further into three types as: AFTER INSERT Trigger, AFTER UPDATE Trigger, AFTER DELETE Trigger.
Is NULL or whitespace SQL?
It is very important to understand that a NULL value is different than a zero value or a field that contains spaces, spaces are considered as values because they are strings (and sql can’t tell what the value of a string means to the user per se), but a NULL signifies a missing value, and hence has no value associated …
What is SQL Patindex?
SQL Server – PATINDEX() Function
The PATINDEX() function in the SQL server is used to return the starting index of the first occurrence of a pattern in a string or a specified expression. It returns zero if the pattern is not found. It returns NULL if either pattern or expression is NULL.