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KSQL_STMT_STEP(3) Library Functions Manual KSQL_STMT_STEP(3) NAME ksql_stmt_cstep, ksql_stmt_step -- get the next row of results from a statement LIBRARY library "ksql" SYNOPSIS #include <sys/types.h> #include <stdint.h> #include <ksql.h> enum ksqlc ksql_stmt_step(struct ksqlstmt *stmt); enum ksqlc ksql_stmt_cstep(struct ksqlstmt *stmt); DESCRIPTION The ksql_stmt_step() and ksql_stmt_cstep() functions query the next row of results from a statement prepared with ksql_stmt_alloc(3). The two functions differ in that ksql_stmt_step() fails when a constraint is violated, while ksql_stmt_cstep() returns KSQL_CONSTRAINT instead. These functions handle a locked database (specifically, SQLITE_BUSY, SQLITE_LOCKED, or SQLITE_PROTOCOL) by sleeping for a random interval, then trying again infinitely. RETURN VALUES These functions return several error conditions: KSQL_NOTOPEN if the database connection has not been opened; KSQL_DB on database errors, including constraint violations with ksql_stmt_step(); and KSQL_MEM on memory allocation failure. It also returns the following non-error conditions: KSQL_ROW if a row is available for examining, KSQL_DONE if no more rows are available, or KSQL_CONSTRAINT if ksql_stmt_cstep() was used and a constraint was vio- lated, SEE ALSO sqlite3_step(3) FreeBSD Ports 14.quarterly May 9, 2018 KSQL_STMT_STEP(3)
NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUES | SEE ALSO
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