创建SQL存储过程(CREATE PROCEDURE (SQL) statement ) 语法格式如下: >>-CREATE PROCEDURE–procedure-name—————————–> >–+—————————————————-+–*—-> ‘-(–+——————————————+–)-‘ | .-,
Hello all - Thanks for your help in advance!!! Here is my code: select employer, period, COUNT( DISTINCT ssn ), CASE marit when 'M' then 'MARIT'...
The provided demo examples in this paper show that a Db2 11 to 12 migration test, with skeleton cloning, was consistently conducted in under 30 minutes. Your production catalog, directory, logs, and so on are likely larger and might take longer. However, with fast replication technology and ...
"Datatype Comparison Rules" for more information and REPLACE Examples The following statement translates a book title into a string that could be used (for example) as a filename. The from_string contains four characters: a space, asterisk, slash, and apostrophe (with an extra apostrophe as t...
might be changed to a language other than C, in which case thePARAMETER VARCHARsetting is ignored. If the procedure is later changed back to LANGUAGE C, the setting of thePARAMETER VARCHARoption that was specified for the CREATE PROCEDURE statement (which is still in the catalog) will be ...
If we want to ignore the NULL values and replace them with blank space, then we can make the use of case statement to concatenate the values as shown below – SELECT CONCAT( CASE WHEN first_name IS NULL THEN '' ELSE CONCAT(' ',first_name) ...
The following SQL statement creates an alias WORKERS for the EMPLOYEE table: CREATE ALIAS WORKERS FOR EMPLOYEE You do not require special authority to create an alias, unless the alias is in a schema other than the one owned by your current authorization ID, in which case DBADM authority is ...
The following situations are some examples of how gaps can be introduced in the sequence values: A transaction has advanced the sequence and then rolls back. The SQL statement leading to the generation of the next value fails after the value was generated. ...
Although an interactive SQL facility might provide an interface that gives the appearance of interactive execution, this statement can only be embedded within an application program. It is not an executable statement and cannot be dynamically prepared. ...
Understanding DB2: Learning Visually with Examples Learn More Buy 2.7 Case Study: DB2 with DPF Environment Now that you are familiar with DPF, let's review some of the concepts discussed using a simple case study. Your company is expanding, and it recently acquired two other firms. Since ...