{"id":953,"date":"2017-03-04T01:52:01","date_gmt":"2017-03-03T20:22:01","guid":{"rendered":"http:\/\/pramodsingla.com\/?p=953"},"modified":"2017-03-04T01:52:01","modified_gmt":"2017-03-03T20:22:01","slug":"mssql-server-get-vlf-counts-of-all-dbs","status":"publish","type":"post","link":"https:\/\/pramodsingla.com\/?p=953","title":{"rendered":"MSSQL Server: Get VLF counts of all Dbs"},"content":{"rendered":"

Problem Statement:<\/strong>Get the VLF count of all the dbs in a SQL server Instance.
\nSolution:\u00a0<\/strong><\/p>\n

--variables\u00a0to\u00a0hold\u00a0each\u00a0'iteration'\u00a0\u00a0<\/i><\/span>
\nDECLARE<\/span>\u00a0@query<\/span>\u00a0VARCHAR<\/i><\/span>(<\/span>100<\/span>)<\/span>
\nDECLARE<\/span>\u00a0@dbname<\/span>\u00a0SYSNAME<\/i><\/span>
\nDECLARE<\/span>\u00a0@vlfs<\/span>\u00a0INT<\/i><\/span>
\n--table\u00a0variable\u00a0used\u00a0to\u00a0'loop'\u00a0over\u00a0databases\u00a0\u00a0<\/i><\/span>
\nDECLARE<\/span>\u00a0@databases<\/span>\u00a0TABLE<\/span>
\n(<\/span>
\ndbname<\/span>\u00a0SYSNAME<\/i><\/span>
\n)<\/span><\/p>\n

INSERT<\/span>\u00a0INTO<\/span>\u00a0@databases<\/span>
\n--only\u00a0choose\u00a0online\u00a0databases\u00a0\u00a0<\/i><\/span>
\nSELECT<\/span>\u00a0NAME<\/span>
\nFROM<\/span>\u00a0\u00a0\u00a0sys<\/span>.<\/span>databases<\/span>
\nWHERE<\/span>\u00a0\u00a0state<\/span>\u00a0=<\/span>\u00a00<\/span><\/p>\n

--table\u00a0variable\u00a0to\u00a0hold\u00a0results\u00a0\u00a0<\/i><\/span>
\nDECLARE<\/span>\u00a0@vlfcounts<\/span>\u00a0TABLE<\/span>
\n(<\/span>
\ndbname<\/span>\u00a0\u00a0\u00a0SYSNAME<\/i><\/span>,<\/span>
\nvlfcount<\/span>\u00a0INT<\/i><\/span>
\n)<\/span>
\n--table\u00a0variable\u00a0to\u00a0capture\u00a0DBCC\u00a0loginfo\u00a0output\u00a0\u00a0<\/i><\/span>
\n--changes\u00a0in\u00a0the\u00a0output\u00a0of\u00a0DBCC\u00a0loginfo\u00a0from\u00a0SQL2012\u00a0mean\u00a0we\u00a0have\u00a0to\u00a0determine\u00a0the\u00a0version\u00a0<\/i><\/span>
\nDECLARE<\/span>\u00a0@MajorVersion<\/span>\u00a0TINYINT<\/i><\/span><\/p>\n

SET<\/span>\u00a0@MajorVersion<\/span>\u00a0=<\/span>\u00a0LEFT<\/i><\/span>(<\/span>Cast<\/i><\/span>(<\/span>Serverproperty<\/i><\/span>(<\/span>'ProductVersion'<\/span>)<\/span>\u00a0AS<\/span>\u00a0NVARCHAR<\/i><\/span>(<\/span>max<\/span>)<\/span>)<\/span>
\n,<\/span>
\nCharindex<\/i><\/span>(<\/span>'.'<\/span>,<\/span>\u00a0Cast<\/i><\/span>(<\/span>
\nServerproperty<\/i><\/span>(<\/span>'ProductVersion'<\/span>)<\/span>\u00a0AS<\/span>
\nNVARCHAR<\/i><\/span>(<\/span>max<\/span>)<\/span>)<\/span>)<\/span>\u00a0-<\/span>\u00a01<\/span>)<\/span><\/p>\n

IF<\/span>\u00a0@MajorVersion<\/span>\u00a0<<\/span>\u00a011<\/span>\u00a0--\u00a0pre-SQL2012\u00a0<\/i><\/span>
\nBEGIN<\/span>
\nDECLARE<\/span>\u00a0@dbccloginfo<\/span>\u00a0TABLE<\/span>
\n(<\/span>
\nfileid<\/span>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0TINYINT<\/i><\/span>,<\/span>
\nfile_size<\/span>\u00a0\u00a0\u00a0\u00a0BIGINT<\/i><\/span>,<\/span>
\nstart_offset<\/span>\u00a0BIGINT<\/i><\/span>,<\/span>
\nfseqno<\/span>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0INT<\/i><\/span>,<\/span>
\n[status]<\/span>\u00a0\u00a0\u00a0\u00a0\u00a0TINYINT<\/i><\/span>,<\/span>
\nparity<\/span>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0TINYINT<\/i><\/span>,<\/span>
\ncreate_lsn<\/span>\u00a0\u00a0\u00a0NUMERIC<\/i><\/span>(<\/span>25<\/span>,<\/span>\u00a00<\/span>)<\/span>
\n)<\/span><\/p>\n

WHILE<\/span>\u00a0EXISTS<\/span>(<\/span>SELECT<\/span>\u00a0TOP<\/span>\u00a01<\/span>\u00a0dbname<\/span>
\nFROM<\/span>\u00a0\u00a0\u00a0@databases<\/span>)<\/span>
\nBEGIN<\/span>
\nSET<\/span>\u00a0@dbname<\/span>\u00a0=<\/span>\u00a0(<\/span>SELECT<\/span>\u00a0TOP<\/span>\u00a01<\/span>\u00a0dbname<\/span>
\nFROM<\/span>\u00a0\u00a0\u00a0@databases<\/span>)<\/span>
\nSET<\/span>\u00a0@query<\/span>\u00a0=<\/span>\u00a0'dbcc\u00a0loginfo\u00a0('<\/span>\u00a0+<\/span>\u00a0''''<\/span>\u00a0+<\/span>\u00a0@dbname<\/span>\u00a0+<\/span>\u00a0''')\u00a0'<\/span><\/p>\n

INSERT<\/span>\u00a0INTO<\/span>\u00a0@dbccloginfo<\/span>
\nEXEC<\/span>\u00a0(<\/span>@query<\/span>)<\/span><\/p>\n

SET<\/span>\u00a0@vlfs<\/span>\u00a0=<\/span>\u00a0@@rowcount<\/span><\/p>\n

INSERT<\/span>\u00a0@vlfcounts<\/span>
\nVALUES<\/span>(<\/span>@dbname<\/span>,<\/span>
\n@vlfs<\/span>)<\/span><\/p>\n

DELETE<\/span>\u00a0FROM<\/span>\u00a0@databases<\/span>
\nWHERE<\/span>\u00a0\u00a0dbname<\/span>\u00a0=<\/span>\u00a0@dbname<\/span>
\nEND<\/span>\u00a0--while\u00a0<\/i><\/span>
\nEND<\/span>
\nELSE<\/span>
\nBEGIN<\/span>
\nDECLARE<\/span>\u00a0@dbccloginfo2012<\/span>\u00a0TABLE<\/span>
\n(<\/span>
\nRecoveryUnitId<\/span>\u00a0INT<\/i><\/span>,<\/span>
\nfileid<\/span>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0TINYINT<\/i><\/span>,<\/span>
\nfile_size<\/span>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0BIGINT<\/i><\/span>,<\/span>
\nstart_offset<\/span>\u00a0\u00a0\u00a0BIGINT<\/i><\/span>,<\/span>
\nfseqno<\/span>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0INT<\/i><\/span>,<\/span>
\n[status]<\/span>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0TINYINT<\/i><\/span>,<\/span>
\nparity<\/span>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0TINYINT<\/i><\/span>,<\/span>
\ncreate_lsn<\/span>\u00a0\u00a0\u00a0\u00a0\u00a0NUMERIC<\/i><\/span>(<\/span>25<\/span>,<\/span>\u00a00<\/span>)<\/span>
\n)<\/span><\/p>\n

WHILE<\/span>\u00a0EXISTS<\/span>(<\/span>SELECT<\/span>\u00a0TOP<\/span>\u00a01<\/span>\u00a0dbname<\/span>
\nFROM<\/span>\u00a0\u00a0\u00a0@databases<\/span>)<\/span>
\nBEGIN<\/span>
\nSET<\/span>\u00a0@dbname<\/span>\u00a0=<\/span>\u00a0(<\/span>SELECT<\/span>\u00a0TOP<\/span>\u00a01<\/span>\u00a0dbname<\/span>
\nFROM<\/span>\u00a0\u00a0\u00a0@databases<\/span>)<\/span>
\nSET<\/span>\u00a0@query<\/span>\u00a0=<\/span>\u00a0'dbcc\u00a0loginfo\u00a0('<\/span>\u00a0+<\/span>\u00a0''''<\/span>\u00a0+<\/span>\u00a0@dbname<\/span>\u00a0+<\/span>\u00a0''')\u00a0'<\/span><\/p>\n

INSERT<\/span>\u00a0INTO<\/span>\u00a0@dbccloginfo2012<\/span>
\nEXEC<\/span>\u00a0(<\/span>@query<\/span>)<\/span><\/p>\n

SET<\/span>\u00a0@vlfs<\/span>\u00a0=<\/span>\u00a0@@rowcount<\/span><\/p>\n

INSERT<\/span>\u00a0@vlfcounts<\/span>
\nVALUES<\/span>(<\/span>@dbname<\/span>,<\/span>
\n@vlfs<\/span>)<\/span><\/p>\n

DELETE<\/span>\u00a0FROM<\/span>\u00a0@databases<\/span>
\nWHERE<\/span>\u00a0\u00a0dbname<\/span>\u00a0=<\/span>\u00a0@dbname<\/span>
\nEND<\/span>\u00a0--while\u00a0<\/i><\/span>
\nEND<\/span><\/p>\n

--output\u00a0the\u00a0full\u00a0list\u00a0\u00a0<\/i><\/span>
\nSELECT<\/span>\u00a0dbname<\/span>,<\/span>
\nvlfcount<\/span>
\nFROM<\/span>\u00a0\u00a0\u00a0@vlfcounts<\/span>
\nORDER<\/span>\u00a0\u00a0BY<\/span>\u00a0dbname<\/span>
\n<\/code><\/p><\/blockquote>\n","protected":false},"excerpt":{"rendered":"

Problem Statement:Get the VLF count of all the dbs in a SQL server Instance. Solution:\u00a0 –variables\u00a0to\u00a0hold\u00a0each\u00a0‘iteration’\u00a0\u00a0 DECLARE\u00a0@query\u00a0VARCHAR(100) DECLARE\u00a0@dbname\u00a0SYSNAME DECLARE\u00a0@vlfs\u00a0INT –table\u00a0variable\u00a0used\u00a0to\u00a0‘loop’\u00a0over\u00a0databases\u00a0\u00a0[…]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_mi_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0},"categories":[23,27],"tags":[90,188,189,190],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/pramodsingla.com\/index.php?rest_route=\/wp\/v2\/posts\/953"}],"collection":[{"href":"https:\/\/pramodsingla.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/pramodsingla.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/pramodsingla.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/pramodsingla.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=953"}],"version-history":[{"count":0,"href":"https:\/\/pramodsingla.com\/index.php?rest_route=\/wp\/v2\/posts\/953\/revisions"}],"wp:attachment":[{"href":"https:\/\/pramodsingla.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=953"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/pramodsingla.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=953"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/pramodsingla.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=953"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}