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VSAM – KSDS

Post author:S K S
Post published:August 18, 2021
Post category:VSAM
Post comments:1 Comment

KSDS is known as Key Sequenced Data Set. A key-sequenced data set (KSDS) is more complex than ESDS and RRDS but is more useful and versatile. We must code INDEXED inside the…

SQL – Indexes

Post author:S J
Post published:August 18, 2021
Post category:SQL
Post comments:1 Comment

Indexes are special lookup tables that the database search engine can use to speed up data retrieval. Simply put, an index is a pointer to data in a table. An index in…

Redis – Server Client Kill Command

Post author:K Z
Post published:August 18, 2021
Post category:Redis
Post comments:0 Comments

Redis CLIENT KILL command closes a given client connection. Return Value Simple string reply − OK if the connection exists and has been closed. Syntax Following is the basic syntax of Redis CLIENT…

Google Charts – Area Charts

Post author:B D
Post published:August 18, 2021
Post category:Google Charts
Post comments:0 Comments

Area charts are used to draw area-based charts. In this section, we're going to discuss the following types of area-based charts. Sr.No.Chart Type & Description1Basic Area Basic area chart2Area with…

Redis – Server Bgsave Command

Post author:K Z
Post published:August 18, 2021
Post category:Redis
Post comments:1 Comment

Redis BGSAVE command saves the DB in the background. The OK code is immediately returned. Redis forks, the parent continues to serve the clients, the child saves the DB on the disk,…

VSAM – ESDS

Post author:S K S
Post published:August 18, 2021
Post category:VSAM
Post comments:2 Comments

ESDS is known as Entry Sequenced Data Set. An entry-sequenced data set behaves like sequential file organization with some more features included. We can access the records directly and for…

SQL – Alias Syntax

Post author:S J
Post published:August 18, 2021
Post category:SQL
Post comments:0 Comments

You can rename a table or a column temporarily by giving another name known as Alias. The use of table aliases is to rename a table in a specific SQL statement.…

VSAM – Cluster

Post author:S K S
Post published:August 18, 2021
Post category:VSAM
Post comments:1 Comment

VSAM cluster is defined in JCL. JCL uses IDCAMS utility to create a cluster. IDCAMS is a utility, developed by IBM, for access method services. It is used to primarily define VSAM datasets.…

Redis – Server Bgrewriteaof Command

Post author:K Z
Post published:August 18, 2021
Post category:Redis
Post comments:1 Comment

Redis BGREWRITEAOF command instructs Redis to start an Append Only File rewrite process. The rewrite will create a small optimized version of the current Append Only File. If BGREWRITEAOF fails, no data…

SQL – NULL Values

Post author:S J
Post published:August 18, 2021
Post category:SQL
Post comments:0 Comments

The SQL NULL is the term used to represent a missing value. A NULL value in a table is a value in a field that appears to be blank. A field with…