How do I delete data from a table in SAS?

You can use PROC SQL / DELETE or less commonly use a SAS Datastep Modify / Remove. The issue with SAS tables: The records don’t get physically removed but get just flagged as deleted. The deleted records still require all the storage space.

How do I delete only data from a table?

Deleting data from tables

1. Use the DELETE statement without specifying a WHERE clause. With segmented table spaces, deleting all rows of a table is very fast.
2. Use the TRUNCATE statement. The TRUNCATE statement can provide the following advantages over a DELETE statement:
3. Use the DROP TABLE statement.

How do you delete a row of data in SAS?

Here are the three most common ways to delete rows in SAS:

1. Method 1: Delete Rows Based on One Condition data new_data; set original_data; if var1 = “string” then delete; run;
2. Method 2: Delete Rows Based on Several Conditions data new_data; set original_data; if var1 = “string” and var2 < 10 then delete; run;

How do you delete a value in SAS?

To delete variables in SAS, you can use the DROP statement in a DATA step. Suppose you want to delete variables x1 , x2 , and x3 in SAS data set old1 and save it to a new SAS data set new1 .

How do you delete observations in SAS?

To remove observations in SAS, you can use the IF statement in a DATA step. Suppose you want to exclude all observations whose scores are greater than 100.

How do I delete a table in database?

SQL DROP TABLE Statement

1. DROP TABLE table_name;
2. Example. DROP TABLE Shippers;
3. TRUNCATE TABLE table_name;

How do I DELETE empty observations in SAS?

To remove records that have a missing value for a particular character variable, you simply need to use an IF statement to check for blanks, followed by a THEN DELETE statement.

How do you DELETE a value in SAS?

How do you DELETE a column in a table in SAS?

Select or Keep columns in SAS tables is achieved by using KEEP statement. DROP Statement is used to drop columns in SAS.

How do I DELETE blank observations in SAS?

How do you DELETE a column in SAS?

How do you delete variables in SAS?

– Define a local macro variable macro_vars_to_delete. – Use the SQL procedure to populate the local macro variable. – The PUT statements show the macro variables that will be deleted. – Use the %SYMDEL statement to delete the macro variables.

How to delete SAS data sets?

– delete the base version and all historical versions – delete the base version and rename the youngest historical version to the base version – delete an absolute version – delete a relative version – delete all historical versions and leave the base version

How I can delete data from table?

Moves one instance of any duplicate row in the original table to a duplicate table.

How to delete rows from a dataset in SAS?

With PROC SQL you can remove duplicate rows intuitively and easily. Within the SELECT clause, you use the DISTINCT keyword to account for duplicate rows. Use the asterisk (*) to select all the columns. In SAS, you can not only use the PROC SORT procedure to order a data set, but also to remove duplicate observations.